2021 Chevrolet Silverado 3500 HD Oil Type & Capacity

The 2021 Chevrolet Silverado 3500 HD oil type depends on the engine: the 6.6L takes 5W-30 (8.0 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:

6.6L: 5W-30, 8.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 5W-30, 8.0 quarts with filter
6.6L: 5W-30, 8.0 quarts with filter
6.6L: 5W-30, 8.0 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: 5W-30, 8.0 quarts with filter
6.6L: 5W-30, 8.0 quarts with filter
6.6L: 5W-30, 8.0 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: 5W-30, 8.0 quarts with filter
6.6L: 5W-30, 8.0 quarts with filter
6.6L: 5W-30, 8.0 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: 5W-30, 8.0 quarts with filter
6.6L: 5W-30, 8.0 quarts with filter
6.6L: 5W-30, 8.0 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: 5W-30, 8.0 quarts with filter
6.6L: 5W-30, 8.0 quarts with filter
6.6L: 5W-30, 8.0 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: 5W-30, 8.0 quarts with filter
6.6L: 5W-30, 8.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 15W-40, 10.0 quarts with filter
6.6L: 5W-30, 8.0 quarts with filter
6.6L: 5W-30, 8.0 quarts with filter
6.6L: 5W-30, 8.0 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: 5W-30, 8.0 quarts with filter
6.6L: 5W-30, 8.0 quarts with filter
6.6L: 5W-30, 8.0 quarts with filter
6.6L: 5W-30, 8.0 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: 5W-30, 8.0 quarts with filter
6.6L: 5W-30, 8.0 quarts with filter
6.6L: 5W-30, 8.0 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: 5W-30, 8.0 quarts with filter
6.6L: 5W-30, 8.0 quarts with filter
6.6L: 5W-30, 8.0 quarts with filter
6.6L: 5W-30, 8.0 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: 5W-30, 8.0 quarts with filter
6.6L: 5W-30, 8.0 quarts with filter
6.6L: 5W-30, 8.0 quarts with filter
6.6L: 5W-30, 8.0 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

🛒 Buy 5W-30 Full Synthetic Oil →🛒 Buy 15W-40 Full Synthetic Oil →🔧 Silverado 3500 HD Oil Filter →

Oil capacity by engine

Engine	Oil Type (viscosity)	Capacity w/ Filter	Capacity w/o Filter	Notes
6.6L — High Country, 6.6L Eng VIN 7, Gas	API - SAE 5W-30 Dexos	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — High Country, 6.6L Eng VIN Y, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LT, 2D Cab Chassis, 6.6L Eng VIN 7, 4WD, Automatic T/Case Control, Gas	API - SAE 5W-30 Dexos	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — LT, 2D Cab Chassis, 6.6L Eng VIN 7, 4WD, Part Time T/Case Control, Gas	API - SAE 5W-30 Dexos	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — LT, 2D Cab Chassis, 6.6L Eng VIN 7, RWD, Gas	API - SAE 5W-30 Dexos	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — LT, 2D Cab Chassis, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGM, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LT, 2D Cab Chassis, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGU, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LT, 2D Cab Chassis, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGM, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LT, 2D Cab Chassis, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGU, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LT, 2D Cab Chassis, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGM, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LT, 2D Cab Chassis, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGU, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LT, 2D Pickup, 6.6L Eng VIN 7, 4WD, Automatic T/Case Control, Gas	API - SAE 5W-30 Dexos	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — LT, 2D Pickup, 6.6L Eng VIN 7, 4WD, Part Time T/Case Control, Gas	API - SAE 5W-30 Dexos	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — LT, 2D Pickup, 6.6L Eng VIN 7, RWD, Gas	API - SAE 5W-30 Dexos	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — LT, 2D Pickup, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGM, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LT, 2D Pickup, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGU, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LT, 2D Pickup, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGM, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LT, 2D Pickup, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGU, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LT, 2D Pickup, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGM, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LT, 2D Pickup, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGU, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LT, 4D Cab Chassis, 6.6L Eng VIN 7, 4WD, Automatic T/Case Control, Gas	API - SAE 5W-30 Dexos	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — LT, 4D Cab Chassis, 6.6L Eng VIN 7, 4WD, Part Time T/Case Control, Gas	API - SAE 5W-30 Dexos	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — LT, 4D Cab Chassis, 6.6L Eng VIN 7, RWD, Gas	API - SAE 5W-30 Dexos	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — LT, 4D Cab Chassis, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGM, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LT, 4D Cab Chassis, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGU, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LT, 4D Cab Chassis, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGM, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LT, 4D Cab Chassis, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGU, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LT, 4D Cab Chassis, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGM, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LT, 4D Cab Chassis, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGU, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LT, 4D Pickup Crew Cab, 6.6L Eng VIN 7, 4WD, Automatic T/Case Control, Gas	API - SAE 5W-30 Dexos	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — LT, 4D Pickup Crew Cab, 6.6L Eng VIN 7, 4WD, Part Time T/Case Control, Gas	API - SAE 5W-30 Dexos	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — LT, 4D Pickup Crew Cab, 6.6L Eng VIN 7, RWD, Gas	API - SAE 5W-30 Dexos	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — LT, 4D Pickup Crew Cab, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGM, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LT, 4D Pickup Crew Cab, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGU, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LT, 4D Pickup Crew Cab, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGM, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LT, 4D Pickup Crew Cab, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGU, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LT, 4D Pickup Crew Cab, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGM, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LT, 4D Pickup Crew Cab, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGU, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LT, 4D Pickup Extra Cab, 6.6L Eng VIN 7, 4WD, Automatic T/Case Control, Gas	API - SAE 5W-30 Dexos	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — LT, 4D Pickup Extra Cab, 6.6L Eng VIN 7, 4WD, Part Time T/Case Control, Gas	API - SAE 5W-30 Dexos	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — LT, 4D Pickup Extra Cab, 6.6L Eng VIN 7, RWD, Gas	API - SAE 5W-30 Dexos	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — LT, 4D Pickup Extra Cab, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGM, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LT, 4D Pickup Extra Cab, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGU, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LT, 4D Pickup Extra Cab, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGM, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LT, 4D Pickup Extra Cab, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGU, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LT, 4D Pickup Extra Cab, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGM, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LT, 4D Pickup Extra Cab, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGU, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LTZ, 6.6L Eng VIN 7, 4WD, Gas	API - SAE 5W-30 Dexos	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — LTZ, 6.6L Eng VIN 7, RWD, Gas	API - SAE 5W-30 Dexos	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — LTZ, 6.6L Eng VIN Y, 4WD, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — LTZ, 6.6L Eng VIN Y, RWD, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — WT, 2D Cab Chassis, 6.6L Eng VIN 7, 4WD, Automatic T/Case Control, Gas	API - SAE 5W-30 Dexos	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — WT, 2D Cab Chassis, 6.6L Eng VIN 7, 4WD, Part Time T/Case Control, Gas	API - SAE 5W-30 Dexos	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — WT, 2D Cab Chassis, 6.6L Eng VIN 7, RWD, Gas	API - SAE 5W-30 Dexos	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — WT, 2D Cab Chassis, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGM, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — WT, 2D Cab Chassis, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGU, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — WT, 2D Cab Chassis, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGM, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — WT, 2D Cab Chassis, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGU, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — WT, 2D Cab Chassis, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGM, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — WT, 2D Cab Chassis, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGU, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — WT, 2D Pickup, 6.6L Eng VIN 7, 4WD, Gas, Gas	API - SAE 5W-30 Dexos	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — WT, 2D Pickup, 6.6L Eng VIN 7, 4WD, Gas/Ethanol, Gas/Ethanol	API - SAE 5W-30	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — WT, 2D Pickup, 6.6L Eng VIN 7, RWD, Gas, Gas	API - SAE 5W-30 Dexos	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — WT, 2D Pickup, 6.6L Eng VIN 7, RWD, Gas/Ethanol, Gas/Ethanol	API - SAE 5W-30	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — WT, 2D Pickup, 6.6L Eng VIN Y, 4WD, Trans Mfr CD 10L1000/MGM, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — WT, 2D Pickup, 6.6L Eng VIN Y, 4WD, Trans Mfr CD 10L1000/MGU, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — WT, 2D Pickup, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGM, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — WT, 2D Pickup, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGU, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — WT, 4D Cab Chassis, 6.6L Eng VIN 7, 4WD, Automatic T/Case Control, Gas	API - SAE 5W-30 Dexos	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — WT, 4D Cab Chassis, 6.6L Eng VIN 7, 4WD, Part Time T/Case Control, Gas	API - SAE 5W-30 Dexos	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — WT, 4D Cab Chassis, 6.6L Eng VIN 7, RWD, Gas	API - SAE 5W-30 Dexos	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — WT, 4D Cab Chassis, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGM, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — WT, 4D Cab Chassis, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGU, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — WT, 4D Cab Chassis, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGM, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — WT, 4D Cab Chassis, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGU, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — WT, 4D Cab Chassis, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGM, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — WT, 4D Cab Chassis, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGU, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — WT, 4D Pickup Crew Cab, 6.6L Eng VIN 7, 4WD, Gas, Gas	API - SAE 5W-30 Dexos	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — WT, 4D Pickup Crew Cab, 6.6L Eng VIN 7, 4WD, Gas/Ethanol, Gas/Ethanol	API - SAE 5W-30	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — WT, 4D Pickup Crew Cab, 6.6L Eng VIN 7, RWD, Gas, Gas	API - SAE 5W-30 Dexos	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — WT, 4D Pickup Crew Cab, 6.6L Eng VIN 7, RWD, Gas/Ethanol, Gas/Ethanol	API - SAE 5W-30	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — WT, 4D Pickup Crew Cab, 6.6L Eng VIN Y, 4WD, Trans Mfr CD 10L1000/MGM, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — WT, 4D Pickup Crew Cab, 6.6L Eng VIN Y, 4WD, Trans Mfr CD 10L1000/MGU, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — WT, 4D Pickup Crew Cab, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGM, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — WT, 4D Pickup Crew Cab, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGU, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — WT, 4D Pickup Extra Cab, 6.6L Eng VIN 7, 4WD, Gas, Gas	API - SAE 5W-30 Dexos	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — WT, 4D Pickup Extra Cab, 6.6L Eng VIN 7, 4WD, Gas/Ethanol, Gas/Ethanol	API - SAE 5W-30	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — WT, 4D Pickup Extra Cab, 6.6L Eng VIN 7, RWD, Gas, Gas	API - SAE 5W-30 Dexos	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — WT, 4D Pickup Extra Cab, 6.6L Eng VIN 7, RWD, Gas/Ethanol, Gas/Ethanol	API - SAE 5W-30	8.00 QTS.	7.50 QTS.	Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
6.6L — WT, 4D Pickup Extra Cab, 6.6L Eng VIN Y, 4WD, Trans Mfr CD 10L1000/MGM, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — WT, 4D Pickup Extra Cab, 6.6L Eng VIN Y, 4WD, Trans Mfr CD 10L1000/MGU, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — WT, 4D Pickup Extra Cab, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGM, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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 — WT, 4D Pickup Extra Cab, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGU, Diesel	API - SAE 15W-40	10.00 QTS.	9.20 QTS.	Oils designated as API CJ-4 or CK-4 are required for the vehicle. The CJ-4 or CK-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality. 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.

More factory specs & repair guides for your Silverado 3500 HD

🛞 2021 Chevrolet Silverado 3500 HD Tire Size & Pressure →🌧️ 2021 Chevrolet Silverado 3500 HD Wiper Blade Sizes →💡 2021 Chevrolet Silverado 3500 HD Light Bulb Sizes →📖 2021 Chevrolet Silverado 3500 HD Factory Service Manual →All fluid capacities (transmission, coolant, brakes)

Coolant capacity

15.5 quarts (14.66 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 2021 Chevrolet Silverado 3500 HD take?

It depends on the engine: 6.6L uses 5W-30; 6.6L uses 15W-40.

What is the oil capacity of a 2021 Chevrolet Silverado 3500 HD?

Oil capacity depends on the engine: 6.6L holds 8.0 quarts with filter; 6.6L holds 10.0 quarts with filter.

How often should I change the oil in my 2021 Chevrolet Silverado 3500 HD?

Most 2021 Chevrolet Silverado 3500 HD 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 — Chevrolet recommends intervals based on driving conditions, not just mileage.

Can I use synthetic oil in my 2021 Chevrolet Silverado 3500 HD?

Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 2021 Chevrolet Silverado 3500 HD. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.

Other Chevrolet Silverado 3500 HD years

2025 Silverado 3500 HD 2024 Silverado 3500 HD 2023 Silverado 3500 HD 2022 Silverado 3500 HD 2020 Silverado 3500 HD 2019 Silverado 3500 HD 2018 Silverado 3500 HD 2017 Silverado 3500 HD 2016 Silverado 3500 HD 2015 Silverado 3500 HD 2014 Silverado 3500 HD 2013 Silverado 3500 HD