2012 GMC Sierra Oil Type & Capacity

The 2012 GMC Sierra oil type depends on the engine: the 4.3L takes 5W-30 (4.5 quarts qt with filter); the 4.8L takes 5W-30 (6.0 quarts qt with filter); the 5.3L takes 5W-30 (6.0 quarts qt with filter); the 6.0L takes 5W-30 (6.0 quarts qt with filter); the 6.2L takes 5W-30 (6.0 quarts qt with filter); the 6.6L takes 15W-40 (10.0 quarts qt with filter), per the factory service manual.

Factory-spec answer

It depends on the engine:

4.3L: 5W-30, 4.5 quarts with filter
4.3L: 5W-30, 4.5 quarts with filter
4.3L: 5W-30, 4.5 quarts with filter
4.8L: 5W-30, 6.0 quarts with filter
4.8L: 5W-30, 6.0 quarts with filter
4.8L: 5W-30, 6.0 quarts with filter
4.8L: 5W-30, 6.0 quarts with filter
4.8L: 5W-30, 6.0 quarts with filter
4.8L: 5W-30, 6.0 quarts with filter
4.8L: 5W-30, 6.0 quarts with filter
4.8L: 5W-30, 6.0 quarts with filter
5.3L: 5W-30, 6.0 quarts with filter
5.3L: 5W-30, 6.0 quarts with filter
5.3L: 5W-30, 6.0 quarts with filter
5.3L: 5W-30, 6.0 quarts with filter
5.3L: 5W-30, 6.0 quarts with filter
5.3L: 5W-30, 6.0 quarts with filter
5.3L: 5W-30, 6.0 quarts with filter
5.3L: 5W-30, 6.0 quarts with filter
5.3L: 5W-30, 6.0 quarts with filter
5.3L: 5W-30, 6.0 quarts with filter
5.3L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.0L: 5W-30, 6.0 quarts with filter
6.2L: 5W-30, 6.0 quarts with filter
6.2L: 5W-30, 6.0 quarts with filter
6.2L: 5W-30, 6.0 quarts with filter
6.2L: 5W-30, 6.0 quarts with filter
6.2L: 5W-30, 6.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter

Oil capacity by engine

Engine	Oil Type (viscosity)	Capacity w/ Filter	Capacity w/o Filter	Notes
4.3L — 1500, 2D Pickup, 4.3L Eng VIN X, 4WD, 4.3L Eng	API - SAE 5W-30	4.50 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
4.3L — 1500, 2D Pickup, 4.3L Eng VIN X, RWD, 4.3L Eng	API - SAE 5W-30	4.50 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
4.3L — 1500, 4D Pickup Extra Cab, 4.3L Eng VIN X, 4.3L Eng	API - SAE 5W-30	4.50 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
4.8L — 1500, 2D Pickup, 4.8L Eng VIN A, 4WD, Automatic T/Case Control, 4.8L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
4.8L — 1500, 2D Pickup, 4.8L Eng VIN A, 4WD, Part Time T/Case Control, 4.8L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
4.8L — 1500, 2D Pickup, 4.8L Eng VIN A, RWD, 4.8L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
4.8L — 1500, 4D Pickup Extra Cab, 4.8L Eng VIN A, Automatic T/Case Control, 4.8L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
4.8L — 1500, 4D Pickup Extra Cab, 4.8L Eng VIN A, Part Time T/Case Control, 4.8L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
4.8L — 1500, 4D Pickup, 4.8L Eng VIN A, 4WD, Automatic T/Case Control, 4.8L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
4.8L — 1500, 4D Pickup, 4.8L Eng VIN A, 4WD, Part Time T/Case Control, 4.8L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
4.8L — 1500, 4D Pickup, 4.8L Eng VIN A, RWD, 4.8L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
5.3L — 1500, 2D Pickup, 5.3L Eng VIN 0, 4WD, Automatic T/Case Control, 5.3L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
5.3L — 1500, 2D Pickup, 5.3L Eng VIN 0, 4WD, Part Time T/Case Control, 5.3L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
5.3L — 1500, 2D Pickup, 5.3L Eng VIN 0, RWD, 5.3L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
5.3L — 1500, 4D Pickup Extra Cab, 5.3L Eng VIN 0, 4WD, Automatic T/Case Control, 5.3L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
5.3L — 1500, 4D Pickup Extra Cab, 5.3L Eng VIN 0, 4WD, Part Time T/Case Control, 5.3L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
5.3L — 1500, 4D Pickup Extra Cab, 5.3L Eng VIN 0, RWD, 5.3L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
5.3L — 1500, 4D Pickup Extra Cab, 5.3L Eng VIN 7, Automatic T/Case Control, 5.3L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
5.3L — 1500, 4D Pickup Extra Cab, 5.3L Eng VIN 7, Part Time T/Case Control, 5.3L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
5.3L — 1500, 4D Pickup, 5.3L Eng VIN 0, 5.3L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
5.3L — 1500, 4D Pickup, 5.3L Eng VIN 7, Automatic T/Case Control, 5.3L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
5.3L — 1500, 4D Pickup, 5.3L Eng VIN 7, Part Time T/Case Control, 5.3L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 1500, 4D Pickup, 6.0L Eng VIN J, 4WD, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 1500, 4D Pickup, 6.0L Eng VIN J, RWD, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 2500 HD, 2D Cab Chassis, 6.0L Eng VIN G, RWD, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 2500 HD, 2D Cab Chassis, 6.0L Eng VIN G, 4WD, Automatic T/Case Control, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 2500 HD, 2D Cab Chassis, 6.0L Eng VIN G, 4WD, Part Time T/Case Control, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 2500 HD, 2D Pickup, 6.0L Eng VIN G, 4WD, Automatic T/Case Control, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 2500 HD, 2D Pickup, 6.0L Eng VIN G, 4WD, Part Time T/Case Control, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 2500 HD, 2D Pickup, 6.0L Eng VIN G, RWD, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 2500 HD, 4D Cab Chassis Extra Cab, 6.0L Eng VIN G, 4WD, Automatic T/Case Control, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 2500 HD, 4D Cab Chassis Extra Cab, 6.0L Eng VIN G, RWD, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 2500 HD, 4D Cab Chassis, 6.0L Eng VIN G, 4WD, Automatic T/Case Control, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 2500 HD, 4D Cab Chassis, 6.0L Eng VIN G, 4WD, Part Time T/Case Control, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 2500 HD, 4D Cab Chassis Extra Cab, 6.0L Eng VIN G, 4WD, Part Time T/Case Control, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 2500 HD, 4D Cab Chassis, 6.0L Eng VIN G, RWD, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 2500 HD, 4D Pickup, 6.0L Eng VIN G, RWD, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 3500 HD, 2D Cab Chassis, 6.0L Eng VIN G, RWD, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 3500 HD, 2D Cab Chassis, 6.0L Eng VIN G, 4WD, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 2500 HD, 4D Pickup, 6.0L Eng VIN G, 4WD, Part Time T/Case Control, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 2500 HD, 4D Pickup Extra Cab, 6.0L Eng VIN G, 4WD, Automatic T/Case Control, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 2500 HD, 4D Pickup Extra Cab, 6.0L Eng VIN G, RWD, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 3500 HD, 2D Pickup, 6.0L Eng VIN G, 4WD, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 3500 HD, 2D Pickup, 6.0L Eng VIN G, RWD, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 2500 HD, 4D Pickup, 6.0L Eng VIN G, 4WD, Automatic T/Case Control, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 2500 HD, 4D Pickup Extra Cab, 6.0L Eng VIN G, 4WD, Part Time T/Case Control, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 3500 HD, 4D Pickup Extra Cab, 6.0L Eng VIN G, RWD, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 3500 HD, 4D Cab Chassis, 6.0L Eng VIN G, 4WD, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 3500 HD, 4D Cab Chassis Extra Cab, 6.0L Eng VIN G, 4WD, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 3500 HD, 4D Cab Chassis Extra Cab, 6.0L Eng VIN G, RWD, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 3500 HD, 4D Pickup, 6.0L Eng VIN G, 4WD, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 3500 HD, 4D Pickup Extra Cab, 6.0L Eng VIN G, 4WD, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 3500 HD, 4D Cab Chassis, 6.0L Eng VIN G, RWD, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.0L — 3500 HD, 4D Pickup, 6.0L Eng VIN G, RWD, 6.0L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.2L — 1500, 4D Pickup Extra Cab, 6.2L Eng VIN 2, 4WD, 6.2L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.2L — 1500, 4D Pickup Extra Cab, 6.2L Eng VIN 2, RWD, 6.2L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.2L — 1500, 4D Pickup, 6.2L Eng VIN 2, 4WD, 6.2L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.2L — 1500, 4D Pickup, 6.2L Eng VIN 2, AWD, 6.2L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.2L — 1500, 4D Pickup, 6.2L Eng VIN 2, RWD, 6.2L Eng	API - SAE 5W-30	6.00 QTS.	—	Use only engine oil licensed to the dexos1 specification, or equivalent. ACDelco dexos1 Synthetic Blend is recommended. Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check to be sure the oil is approved to the dexos1 specification. For areas of extreme cold, where temperatures fall below -20Deg.F (-29Deg.C), it is recommended a SAE 5W-30 synthetic oil or a SAE 10W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 10W-50.
6.6L — 2500 HD, 2D Cab Chassis, 6.6L Eng VIN 8, 4WD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 2500 HD, 2D Cab Chassis, 6.6L Eng VIN L, 4WD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 2500 HD, 2D Cab Chassis, 6.6L Eng VIN 8, RWD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 2500 HD, 2D Cab Chassis, 6.6L Eng VIN L, RWD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 2500 HD, 2D Pickup, 6.6L Eng VIN 8, 4WD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 2500 HD, 2D Pickup, 6.6L Eng VIN 8, RWD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 2500 HD, 2D Pickup, 6.6L Eng VIN L, 4WD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 2500 HD, 2D Pickup, 6.6L Eng VIN L, RWD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 2500 HD, 4D Cab Chassis Extra Cab, 6.6L Eng VIN 8, 4WD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 2500 HD, 4D Cab Chassis Extra Cab, 6.6L Eng VIN L, RWD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 2500 HD, 4D Cab Chassis Extra Cab, 6.6L Eng VIN L, 4WD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 2500 HD, 4D Cab Chassis Extra Cab, 6.6L Eng VIN 8, RWD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 2500 HD, 4D Cab Chassis, 6.6L Eng VIN 8, 4WD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 2500 HD, 4D Cab Chassis, 6.6L Eng VIN 8, RWD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 2500 HD, 4D Cab Chassis, 6.6L Eng VIN L, 4WD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 2500 HD, 4D Cab Chassis, 6.6L Eng VIN L, RWD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 2500 HD, 4D Pickup Extra Cab, 6.6L Eng VIN 8, RWD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 2500 HD, 4D Pickup Extra Cab, 6.6L Eng VIN 8, 4WD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 2500 HD, 4D Pickup, 6.6L Eng VIN L, RWD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 2500 HD, 4D Pickup Extra Cab, 6.6L Eng VIN L, 4WD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 2500 HD, 4D Pickup, 6.6L Eng VIN 8, 4WD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 2500 HD, 4D Pickup Extra Cab, 6.6L Eng VIN L, RWD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 2500 HD, 4D Pickup, 6.6L Eng VIN L, 4WD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 3500 HD, 2D Cab Chassis, 6.6L Eng VIN L, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 2500 HD, 4D Pickup, 6.6L Eng VIN 8, RWD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 3500 HD, 4D Cab Chassis, 6.6L Eng VIN 8, RWD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 3500 HD, 4D Cab Chassis Extra Cab, 6.6L Eng VIN L, 4WD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 3500 HD, 2D Pickup, 6.6L Eng VIN L, RWD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 3500 HD, 4D Pickup Extra Cab, 6.6L Eng VIN 8, RWD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 3500 HD, 2D Pickup, 6.6L Eng VIN L, 4WD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 3500 HD, 4D Cab Chassis, 6.6L Eng VIN 8, 4WD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 3500 HD, 4D Cab Chassis, 6.6L Eng VIN L, 4WD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 3500 HD, 4D Cab Chassis, 6.6L Eng VIN L, RWD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 3500 HD, 4D Cab Chassis Extra Cab, 6.6L Eng VIN L, RWD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 3500 HD, 4D Pickup Extra Cab, 6.6L Eng VIN 8, 4WD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 3500 HD, 4D Pickup, 6.6L Eng VIN 8, 4WD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 3500 HD, 2D Pickup, 6.6L Eng VIN 8, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.
6.6L — 3500 HD, 4D Pickup, 6.6L Eng VIN 8, RWD, 6.6L Eng	API - SAE 15W-40	10.00 QTS.	—	Oil designated as API CJ-4 are required for the vehicle. The CJ-4 designation can appear either alone or in combination with other American Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. DO NOT use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. When it is very cold, below 0Deg. F (-18Deg.C), you should use SAE 5W-40 to improve cold starting. Do not use other viscosity such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.

📦 DIY Oil Change Kit Builder

Complete Oil Change Bundle for 2012 GMC Sierra

Everything you need delivered in one order. Pre-matched to your factory spec (5W-30, 4.5 quarts).

Preferred Oil Brand:

Mobil 1 5W-30 Full Synthetic OilExact Spec

5-Quart Jug (4.5 quarts needed)

$27.97Item Link ↗

2012 GMC Sierra Premium Synthetic Oil FilterExact Fit

OEM-fitment high-efficiency synthetic filter media (4.3L)

$11.99Item Link ↗

Oil Drain Plug Crush Washer Gaskets (5-Pack)Recommended

Direct-fit replacement seal — prevents oil leaks after tightening

$6.99Item Link ↗

15-Quart Low-Profile Drain Pan with Pour SpoutTool

Catch-all basin with anti-splash lip & secure transport cap

$18.99Item Link ↗

RhinoRamps 12,000 lb Drive-Up Vehicle RampsTool

Safe driveway clearance for quick vehicle underbody access

$49.99Item Link ↗

Heavy-Duty Black Nitrile Gloves (Box of 100)PPE

6-mil commercial-grade chemical & oil resistant mechanics gloves

$14.99Item Link ↗

Multi-Angle Spill-Proof Oil Funnel SetTool

Wide-mouth funnel with flexible neck to eliminate engine bay spills

$8.99Item Link ↗

Scott Blue Shop Towels (6-Pack)Supplies

Ultra-absorbent lint-free automotive towels for clean-up

$12.99Item Link ↗

Selected Items: 3 items

$46.95 est. total

🛒Buy Complete DIY Kit on Amazon (~$46.95) →

As an Amazon Associate we earn from qualifying purchases. Prices shown are real-time retail estimates.

Buy the right oil & filter for your Sierra

🛒 Buy 5W-30 Full Synthetic Oil (4.5 quarts needed) on Amazon 🛒 Buy 15W-40 Full Synthetic Oil (4.5 quarts needed) on Amazon

Popular Full Synthetic Brands (5W-30):

Mobil 1 →Valvoline Advanced →Pennzoil Platinum →Castrol EDGE →

🔧 2012 GMC Sierra Oil Filter on Amazon Drain plug crush washer on Amazon

+ 15 Qt Drain Pan + Shop Towels (6 pack)+ Nitrile Gloves (100 pk)

As an Amazon Associate we earn from qualifying purchases made through these links.

More factory specs & repair guides for your Sierra

🛞 2012 GMC Sierra Tire Size & Pressure →🌧️ 2012 GMC Sierra Wiper Blade Sizes →💡 2012 GMC Sierra Light Bulb Sizes →📖 2012 GMC Sierra Factory Service Manual →All fluid capacities (transmission, coolant, brakes)

Coolant capacity

2.9 quarts (2.74 L) — 50/50 mixture of DEX-COOL and clean, drinkable water. All capacities are approximate. When adding, be sure to fill to the approximate level. Recheck the fluid level after filling.

Frequently asked questions

What type of oil does a 2012 GMC Sierra take?

It depends on the engine: 4.3L uses 5W-30; 4.8L uses 5W-30; 5.3L uses 5W-30; 6.0L uses 5W-30; 6.2L uses 5W-30; 6.6L uses 15W-40.

What is the oil capacity of a 2012 GMC Sierra?

Oil capacity depends on the engine: 4.3L holds 4.5 quarts with filter; 4.8L holds 6.0 quarts with filter; 5.3L holds 6.0 quarts with filter; 6.0L holds 6.0 quarts with filter; 6.2L holds 6.0 quarts with filter; 6.6L holds 10.0 quarts with filter.

How often should I change the oil in my 2012 GMC Sierra?

Most 2012 GMC Sierra owners follow a 5,000–7,500 mile interval with conventional oil, or up to 10,000 miles with full synthetic. Always check the oil life monitor if equipped, and consult your owner's manual — GMC recommends intervals based on driving conditions, not just mileage.

Can I use synthetic oil in my 2012 GMC Sierra?

Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 2012 GMC Sierra. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.

Other GMC Sierra years

2011 Sierra 2010 Sierra 2009 Sierra 2008 Sierra 2007 Sierra 2006 Sierra 2005 Sierra 2004 Sierra 2003 Sierra 2002 Sierra 2001 Sierra 2000 Sierra 1999 Sierra