WhatTypeOfOil.com

2008 GMC Sierra Oil Type & Capacity

The 2008 GMC Sierra oil type depends on the engine: the 1500, 2D Pickup, 4.3 X, 4WD, Automatic takes 5W-30 (4.5 quarts qt with filter); the 1500, 2D Pickup, 4.3 X, 4WD, Part Time takes 5W-30 (4.5 quarts qt with filter); the 1500, 2D Pickup, 4.3 X, RWD takes 5W-30 (4.5 quarts qt with filter); the 1500, 2D Pickup, 4.8 C, 4WD, Automatic takes 5W-30 (6.0 quarts qt with filter); the 1500, 2D Pickup, 4.8 C, 4WD, Part Time takes 5W-30 (6.0 quarts qt with filter); the 1500, 2D Pickup, 4.8 C, RWD takes 5W-30 (6.0 quarts qt with filter); the 1500, 2D Pickup, 5.3 0, 4WD, Automatic takes 5W-30 (6.0 quarts qt with filter); the 1500, 2D Pickup, 5.3 0, 4WD, Part Time takes 5W-30 (6.0 quarts qt with filter); the 1500, 2D Pickup, 5.3 0, RWD takes 5W-30 (6.0 quarts qt with filter); the 1500, 2D Pickup, 5.3 J, 4WD, Automatic takes 5W-30 (6.0 quarts qt with filter); the 1500, 2D Pickup, 5.3 J, 4WD, Part Time takes 5W-30 (6.0 quarts qt with filter); the 1500, 2D Pickup, 5.3 J, RWD takes 5W-30 (6.0 quarts qt with filter); the 1500, 4D Pickup Extra Cab, 4.3 X, 4WD, Automatic takes 5W-30 (4.5 quarts qt with filter); the 1500, 4D Pickup Extra Cab, 4.3 X, 4WD, Part Time takes 5W-30 (4.5 quarts qt with filter); the 1500, 4D Pickup Extra Cab, 4.3 X, RWD takes 5W-30 (4.5 quarts qt with filter); the 1500, 4D Pickup Extra Cab, 4.8 C, 4WD, Automatic takes 5W-30 (6.0 quarts qt with filter); the 1500, 4D Pickup Extra Cab, 4.8 C, 4WD, Part Time takes 5W-30 (6.0 quarts qt with filter); the 1500, 4D Pickup Extra Cab, 4.8 C, RWD takes 5W-30 (6.0 quarts qt with filter); the 1500, 4D Pickup Extra Cab, 5.3 0, 4WD, Automatic takes 5W-30 (6.0 quarts qt with filter); the 1500, 4D Pickup Extra Cab, 5.3 0, 4WD, Part Time takes 5W-30 (6.0 quarts qt with filter); the 1500, 4D Pickup Extra Cab, 5.3 0, RWD takes 5W-30 (6.0 quarts qt with filter); the 1500, 4D Pickup Extra Cab, 5.3 J, 4WD, Automatic takes 5W-30 (6.0 quarts qt with filter); the 1500, 4D Pickup Extra Cab, 5.3 J, 4WD, Part Time takes 5W-30 (6.0 quarts qt with filter); the 1500, 4D Pickup Extra Cab, 5.3 J, RWD takes 5W-30 (6.0 quarts qt with filter); the 1500, 4D Pickup Extra Cab, 6.0 Y, 4WD takes 5W-30 (6.0 quarts qt with filter); the 1500, 4D Pickup Extra Cab, 6.0 Y, RWD takes 5W-30 (6.0 quarts qt with filter); the 1500, 4D Pickup, 4.8 C, 4WD, Automatic takes 5W-30 (6.0 quarts qt with filter); the 1500, 4D Pickup, 4.8 C, 4WD, Part Time takes 5W-30 (6.0 quarts qt with filter); the 1500, 4D Pickup, 4.8 C, RWD takes 5W-30 (6.0 quarts qt with filter); the 1500, 4D Pickup, 5.3 0 takes 5W-30 (6.0 quarts qt with filter); the 1500, 4D Pickup, 5.3 3, Automatic takes 5W-30 (6.0 quarts qt with filter); the 1500, 4D Pickup, 5.3 3, Part Time takes 5W-30 (6.0 quarts qt with filter); the 1500, 4D Pickup, 5.3 J takes 5W-30 (6.0 quarts qt with filter); the 1500, 4D Pickup, 5.3 M, Automatic takes 5W-30 (6.0 quarts qt with filter); the 1500, 4D Pickup, 5.3 M, Part Time takes 5W-30 (6.0 quarts qt with filter); the 1500, 4D Pickup, 6.0 Y, 4WD, Automatic takes 5W-30 (6.0 quarts qt with filter); the 1500, 4D Pickup, 6.0 Y, 4WD, Part Time takes 5W-30 (6.0 quarts qt with filter); the 1500, 4D Pickup, 6.0 Y, RWD takes 5W-30 (6.0 quarts qt with filter); the 1500, 4D Pickup, 6.2 8, AWD takes 5W-30 (6.0 quarts qt with filter); the 1500, 4D Pickup, 6.2 8, RWD takes 5W-30 (6.0 quarts qt with filter); the 2500 HD, 2D Pickup, 6.0 K, 4WD, Automatic takes 5W-30 (6.0 quarts qt with filter); the 2500 HD, 2D Pickup, 6.0 K, 4WD, Part Time takes 5W-30 (6.0 quarts qt with filter); the 2500 HD, 2D Pickup, 6.0 K, RWD takes 5W-30 (6.0 quarts qt with filter); the 2500 HD, 2D Pickup, 6.6 6, 4WD takes 15W-40 (10.0 quarts qt with filter); the 2500 HD, 2D Pickup, 6.6 6, RWD takes 15W-40 (10.0 quarts qt with filter); the 2500 HD, 4D Pickup Extra Cab, 6.0 K, 4WD, Automatic takes 5W-30 (6.0 quarts qt with filter); the 2500 HD, 4D Pickup Extra Cab, 6.0 K, 4WD, Part Time takes 5W-30 (6.0 quarts qt with filter); the 2500 HD, 4D Pickup Extra Cab, 6.0 K, RWD takes 5W-30 (6.0 quarts qt with filter); the 2500 HD, 4D Pickup Extra Cab, 6.6 6, 4WD takes 15W-40 (10.0 quarts qt with filter); the 2500 HD, 4D Pickup Extra Cab, 6.6 6, RWD takes 15W-40 (10.0 quarts qt with filter); the 2500 HD, 4D Pickup, 6.0 K, 4WD, Automatic takes 5W-30 (6.0 quarts qt with filter); the 2500 HD, 4D Pickup, 6.0 K, 4WD, Part Time takes 5W-30 (6.0 quarts qt with filter); the 2500 HD, 4D Pickup, 6.0 K, RWD takes 5W-30 (6.0 quarts qt with filter); the 2500 HD, 4D Pickup, 6.6 6, 4WD takes 15W-40 (10.0 quarts qt with filter); the 2500 HD, 4D Pickup, 6.6 6, RWD takes 15W-40 (10.0 quarts qt with filter); the 3500 HD, 2D Pickup, 6.0 K, 4WD takes 5W-30 (6.0 quarts qt with filter); the 3500 HD, 2D Pickup, 6.0 K, RWD takes 5W-30 (6.0 quarts qt with filter); the 3500 HD, 2D Pickup, 6.6 6, 4WD takes 15W-40 (10.0 quarts qt with filter); the 3500 HD, 2D Pickup, 6.6 6, RWD takes 15W-40 (10.0 quarts qt with filter); the 3500 HD, 4D Pickup Extra Cab, 6.0 K, 4WD takes 5W-30 (6.0 quarts qt with filter); the 3500 HD, 4D Pickup Extra Cab, 6.0 K, RWD takes 5W-30 (6.0 quarts qt with filter); the 3500 HD, 4D Pickup Extra Cab, 6.6 6, 4WD takes 15W-40 (10.0 quarts qt with filter); the 3500 HD, 4D Pickup Extra Cab, 6.6 6, RWD takes 15W-40 (10.0 quarts qt with filter); the 3500 HD, 4D Pickup, 6.0 K, 4WD takes 5W-30 (6.0 quarts qt with filter); the 3500 HD, 4D Pickup, 6.0 K, RWD takes 5W-30 (6.0 quarts qt with filter); the 3500 HD, 4D Pickup, 6.6 6, 4WD takes 15W-40 (10.0 quarts qt with filter); the 3500 HD, 4D Pickup, 6.6 6, RWD takes 15W-40 (10.0 quarts qt with filter), per the factory service manual.

Factory-spec answer

It depends on the engine:

Oil capacity by engine

EngineOil Type (viscosity)Capacity w/ FilterCapacity w/o FilterNotes
1500, 2D Pickup, 4.3 X, 4WD, Automatic — 4.3L EngAPI - SAE 5W-304.50 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 2D Pickup, 4.3 X, 4WD, Part Time — 4.3L EngAPI - SAE 5W-304.50 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 2D Pickup, 4.3 X, RWD — 4.3L EngAPI - SAE 5W-304.50 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 2D Pickup, 4.8 C, 4WD, Automatic — 4.8L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 2D Pickup, 4.8 C, 4WD, Part Time — 4.8L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 2D Pickup, 4.8 C, RWD — 4.8L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 2D Pickup, 5.3 0, 4WD, Automatic — 5.3L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 2D Pickup, 5.3 0, 4WD, Part Time — 5.3L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 2D Pickup, 5.3 0, RWD — 5.3L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 2D Pickup, 5.3 J, 4WD, Automatic — 5.3L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 2D Pickup, 5.3 J, 4WD, Part Time — 5.3L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 2D Pickup, 5.3 J, RWD — 5.3L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 4D Pickup Extra Cab, 4.3 X, 4WD, Automatic — 4.3L EngAPI - SAE 5W-304.50 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 4D Pickup Extra Cab, 4.3 X, 4WD, Part Time — 4.3L EngAPI - SAE 5W-304.50 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 4D Pickup Extra Cab, 4.3 X, RWD — 4.3L EngAPI - SAE 5W-304.50 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 4D Pickup Extra Cab, 4.8 C, 4WD, Automatic — 4.8L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 4D Pickup Extra Cab, 4.8 C, 4WD, Part Time — 4.8L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 4D Pickup Extra Cab, 4.8 C, RWD — 4.8L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 4D Pickup Extra Cab, 5.3 0, 4WD, Automatic — 5.3L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 4D Pickup Extra Cab, 5.3 0, 4WD, Part Time — 5.3L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 4D Pickup Extra Cab, 5.3 0, RWD — 5.3L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 4D Pickup Extra Cab, 5.3 J, 4WD, Automatic — 5.3L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 4D Pickup Extra Cab, 5.3 J, 4WD, Part Time — 5.3L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 4D Pickup Extra Cab, 5.3 J, RWD — 5.3L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 4D Pickup Extra Cab, 6.0 Y, 4WD — 6.0L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 4D Pickup Extra Cab, 6.0 Y, RWD — 6.0L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 4D Pickup, 4.8 C, 4WD, Automatic — 4.8L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 4D Pickup, 4.8 C, 4WD, Part Time — 4.8L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 4D Pickup, 4.8 C, RWD — 4.8L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 4D Pickup, 5.3 0 — 5.3L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 4D Pickup, 5.3 3, Automatic — 5.3L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 4D Pickup, 5.3 3, Part Time — 5.3L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 4D Pickup, 5.3 J — 5.3L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 4D Pickup, 5.3 M, Automatic — 5.3L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 4D Pickup, 5.3 M, Part Time — 5.3L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 4D Pickup, 6.0 Y, 4WD, Automatic — 6.0L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 4D Pickup, 6.0 Y, 4WD, Part Time — 6.0L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 4D Pickup, 6.0 Y, RWD — 6.0L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 4D Pickup, 6.2 8, AWD — 6.2L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
1500, 4D Pickup, 6.2 8, RWD — 6.2L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
2500 HD, 2D Pickup, 6.0 K, 4WD, Automatic — 6.0L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
2500 HD, 2D Pickup, 6.0 K, 4WD, Part Time — 6.0L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
2500 HD, 2D Pickup, 6.0 K, RWD — 6.0L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
2500 HD, 2D Pickup, 6.6 6, 4WD — 6.6L EngAPI - SAE 15W-4010.00 QTS.9.20 QTS.Use ONLY engine oils that have one of these designations: CI-4 or CH-4 for DURAMAX diesel engines. 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.
2500 HD, 2D Pickup, 6.6 6, RWD — 6.6L EngAPI - SAE 15W-4010.00 QTS.9.20 QTS.Use ONLY engine oils that have one of these designations: CI-4 or CH-4 for DURAMAX diesel engines. 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.
2500 HD, 4D Pickup Extra Cab, 6.0 K, 4WD, Automatic — 6.0L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
2500 HD, 4D Pickup Extra Cab, 6.0 K, 4WD, Part Time — 6.0L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
2500 HD, 4D Pickup Extra Cab, 6.0 K, RWD — 6.0L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
2500 HD, 4D Pickup Extra Cab, 6.6 6, 4WD — 6.6L EngAPI - SAE 15W-4010.00 QTS.9.20 QTS.Use ONLY engine oils that have one of these designations: CI-4 or CH-4 for DURAMAX diesel engines. 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.
2500 HD, 4D Pickup Extra Cab, 6.6 6, RWD — 6.6L EngAPI - SAE 15W-4010.00 QTS.9.20 QTS.Use ONLY engine oils that have one of these designations: CI-4 or CH-4 for DURAMAX diesel engines. 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.
2500 HD, 4D Pickup, 6.0 K, 4WD, Automatic — 6.0L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
2500 HD, 4D Pickup, 6.0 K, 4WD, Part Time — 6.0L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
2500 HD, 4D Pickup, 6.0 K, RWD — 6.0L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
2500 HD, 4D Pickup, 6.6 6, 4WD — 6.6L EngAPI - SAE 15W-4010.00 QTS.9.20 QTS.Use ONLY engine oils that have one of these designations: CI-4 or CH-4 for DURAMAX diesel engines. 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.
2500 HD, 4D Pickup, 6.6 6, RWD — 6.6L EngAPI - SAE 15W-4010.00 QTS.9.20 QTS.Use ONLY engine oils that have one of these designations: CI-4 or CH-4 for DURAMAX diesel engines. 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.
3500 HD, 2D Pickup, 6.0 K, 4WD — 6.0L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
3500 HD, 2D Pickup, 6.0 K, RWD — 6.0L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
3500 HD, 2D Pickup, 6.6 6, 4WD — 6.6L EngAPI - SAE 15W-4010.00 QTS.9.20 QTS.Use ONLY engine oils that have one of these designations: CI-4 or CH-4 for DURAMAX diesel engines. 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.
3500 HD, 2D Pickup, 6.6 6, RWD — 6.6L EngAPI - SAE 15W-4010.00 QTS.9.20 QTS.Use ONLY engine oils that have one of these designations: CI-4 or CH-4 for DURAMAX diesel engines. 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.
3500 HD, 4D Pickup Extra Cab, 6.0 K, 4WD — 6.0L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
3500 HD, 4D Pickup Extra Cab, 6.0 K, RWD — 6.0L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
3500 HD, 4D Pickup Extra Cab, 6.6 6, 4WD — 6.6L EngAPI - SAE 15W-4010.00 QTS.9.20 QTS.Use ONLY engine oils that have one of these designations: CI-4 or CH-4 for DURAMAX diesel engines. 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.
3500 HD, 4D Pickup Extra Cab, 6.6 6, RWD — 6.6L EngAPI - SAE 15W-4010.00 QTS.9.20 QTS.Use ONLY engine oils that have one of these designations: CI-4 or CH-4 for DURAMAX diesel engines. 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.
3500 HD, 4D Pickup, 6.0 K, 4WD — 6.0L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
3500 HD, 4D Pickup, 6.0 K, RWD — 6.0L EngAPI - SAE 5W-306.00 QTS.—Use oil that meets GM Standard GM6094M. 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.
3500 HD, 4D Pickup, 6.6 6, 4WD — 6.6L EngAPI - SAE 15W-4010.00 QTS.9.20 QTS.Use ONLY engine oils that have one of these designations: CI-4 or CH-4 for DURAMAX diesel engines. 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.
3500 HD, 4D Pickup, 6.6 6, RWD — 6.6L EngAPI - SAE 15W-4010.00 QTS.9.20 QTS.Use ONLY engine oils that have one of these designations: CI-4 or CH-4 for DURAMAX diesel engines. 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 2008 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 ↗
2008 GMC Sierra Premium Synthetic Oil FilterExact Fit
OEM-fitment high-efficiency synthetic filter media (1500, 2D Pickup, 4.3 X, 4WD, Automatic)
$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
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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 →
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More factory specs & repair guides for your Sierra

🛞 2008 GMC Sierra Tire Size & Pressure →🌧️ 2008 GMC Sierra Wiper Blade Sizes →💡 2008 GMC Sierra Light Bulb Sizes →📖 2008 GMC Sierra Factory Service Manual →All fluid capacities (transmission, coolant, brakes)

Powered by factory manual data from our partner network AllOEMManuals.com.

Coolant capacity

16.5 quarts (15.61 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 2008 GMC Sierra take?

It depends on the engine: 1500, 2D Pickup, 4.3 X, 4WD, Automatic uses 5W-30; 1500, 2D Pickup, 4.3 X, 4WD, Part Time uses 5W-30; 1500, 2D Pickup, 4.3 X, RWD uses 5W-30; 1500, 2D Pickup, 4.8 C, 4WD, Automatic uses 5W-30; 1500, 2D Pickup, 4.8 C, 4WD, Part Time uses 5W-30; 1500, 2D Pickup, 4.8 C, RWD uses 5W-30; 1500, 2D Pickup, 5.3 0, 4WD, Automatic uses 5W-30; 1500, 2D Pickup, 5.3 0, 4WD, Part Time uses 5W-30; 1500, 2D Pickup, 5.3 0, RWD uses 5W-30; 1500, 2D Pickup, 5.3 J, 4WD, Automatic uses 5W-30; 1500, 2D Pickup, 5.3 J, 4WD, Part Time uses 5W-30; 1500, 2D Pickup, 5.3 J, RWD uses 5W-30; 1500, 4D Pickup Extra Cab, 4.3 X, 4WD, Automatic uses 5W-30; 1500, 4D Pickup Extra Cab, 4.3 X, 4WD, Part Time uses 5W-30; 1500, 4D Pickup Extra Cab, 4.3 X, RWD uses 5W-30; 1500, 4D Pickup Extra Cab, 4.8 C, 4WD, Automatic uses 5W-30; 1500, 4D Pickup Extra Cab, 4.8 C, 4WD, Part Time uses 5W-30; 1500, 4D Pickup Extra Cab, 4.8 C, RWD uses 5W-30; 1500, 4D Pickup Extra Cab, 5.3 0, 4WD, Automatic uses 5W-30; 1500, 4D Pickup Extra Cab, 5.3 0, 4WD, Part Time uses 5W-30; 1500, 4D Pickup Extra Cab, 5.3 0, RWD uses 5W-30; 1500, 4D Pickup Extra Cab, 5.3 J, 4WD, Automatic uses 5W-30; 1500, 4D Pickup Extra Cab, 5.3 J, 4WD, Part Time uses 5W-30; 1500, 4D Pickup Extra Cab, 5.3 J, RWD uses 5W-30; 1500, 4D Pickup Extra Cab, 6.0 Y, 4WD uses 5W-30; 1500, 4D Pickup Extra Cab, 6.0 Y, RWD uses 5W-30; 1500, 4D Pickup, 4.8 C, 4WD, Automatic uses 5W-30; 1500, 4D Pickup, 4.8 C, 4WD, Part Time uses 5W-30; 1500, 4D Pickup, 4.8 C, RWD uses 5W-30; 1500, 4D Pickup, 5.3 0 uses 5W-30; 1500, 4D Pickup, 5.3 3, Automatic uses 5W-30; 1500, 4D Pickup, 5.3 3, Part Time uses 5W-30; 1500, 4D Pickup, 5.3 J uses 5W-30; 1500, 4D Pickup, 5.3 M, Automatic uses 5W-30; 1500, 4D Pickup, 5.3 M, Part Time uses 5W-30; 1500, 4D Pickup, 6.0 Y, 4WD, Automatic uses 5W-30; 1500, 4D Pickup, 6.0 Y, 4WD, Part Time uses 5W-30; 1500, 4D Pickup, 6.0 Y, RWD uses 5W-30; 1500, 4D Pickup, 6.2 8, AWD uses 5W-30; 1500, 4D Pickup, 6.2 8, RWD uses 5W-30; 2500 HD, 2D Pickup, 6.0 K, 4WD, Automatic uses 5W-30; 2500 HD, 2D Pickup, 6.0 K, 4WD, Part Time uses 5W-30; 2500 HD, 2D Pickup, 6.0 K, RWD uses 5W-30; 2500 HD, 2D Pickup, 6.6 6, 4WD uses 15W-40; 2500 HD, 2D Pickup, 6.6 6, RWD uses 15W-40; 2500 HD, 4D Pickup Extra Cab, 6.0 K, 4WD, Automatic uses 5W-30; 2500 HD, 4D Pickup Extra Cab, 6.0 K, 4WD, Part Time uses 5W-30; 2500 HD, 4D Pickup Extra Cab, 6.0 K, RWD uses 5W-30; 2500 HD, 4D Pickup Extra Cab, 6.6 6, 4WD uses 15W-40; 2500 HD, 4D Pickup Extra Cab, 6.6 6, RWD uses 15W-40; 2500 HD, 4D Pickup, 6.0 K, 4WD, Automatic uses 5W-30; 2500 HD, 4D Pickup, 6.0 K, 4WD, Part Time uses 5W-30; 2500 HD, 4D Pickup, 6.0 K, RWD uses 5W-30; 2500 HD, 4D Pickup, 6.6 6, 4WD uses 15W-40; 2500 HD, 4D Pickup, 6.6 6, RWD uses 15W-40; 3500 HD, 2D Pickup, 6.0 K, 4WD uses 5W-30; 3500 HD, 2D Pickup, 6.0 K, RWD uses 5W-30; 3500 HD, 2D Pickup, 6.6 6, 4WD uses 15W-40; 3500 HD, 2D Pickup, 6.6 6, RWD uses 15W-40; 3500 HD, 4D Pickup Extra Cab, 6.0 K, 4WD uses 5W-30; 3500 HD, 4D Pickup Extra Cab, 6.0 K, RWD uses 5W-30; 3500 HD, 4D Pickup Extra Cab, 6.6 6, 4WD uses 15W-40; 3500 HD, 4D Pickup Extra Cab, 6.6 6, RWD uses 15W-40; 3500 HD, 4D Pickup, 6.0 K, 4WD uses 5W-30; 3500 HD, 4D Pickup, 6.0 K, RWD uses 5W-30; 3500 HD, 4D Pickup, 6.6 6, 4WD uses 15W-40; 3500 HD, 4D Pickup, 6.6 6, RWD uses 15W-40.

What is the oil capacity of a 2008 GMC Sierra?

Oil capacity depends on the engine: 1500, 2D Pickup, 4.3 X, 4WD, Automatic holds 4.5 quarts with filter; 1500, 2D Pickup, 4.3 X, 4WD, Part Time holds 4.5 quarts with filter; 1500, 2D Pickup, 4.3 X, RWD holds 4.5 quarts with filter; 1500, 2D Pickup, 4.8 C, 4WD, Automatic holds 6.0 quarts with filter; 1500, 2D Pickup, 4.8 C, 4WD, Part Time holds 6.0 quarts with filter; 1500, 2D Pickup, 4.8 C, RWD holds 6.0 quarts with filter; 1500, 2D Pickup, 5.3 0, 4WD, Automatic holds 6.0 quarts with filter; 1500, 2D Pickup, 5.3 0, 4WD, Part Time holds 6.0 quarts with filter; 1500, 2D Pickup, 5.3 0, RWD holds 6.0 quarts with filter; 1500, 2D Pickup, 5.3 J, 4WD, Automatic holds 6.0 quarts with filter; 1500, 2D Pickup, 5.3 J, 4WD, Part Time holds 6.0 quarts with filter; 1500, 2D Pickup, 5.3 J, RWD holds 6.0 quarts with filter; 1500, 4D Pickup Extra Cab, 4.3 X, 4WD, Automatic holds 4.5 quarts with filter; 1500, 4D Pickup Extra Cab, 4.3 X, 4WD, Part Time holds 4.5 quarts with filter; 1500, 4D Pickup Extra Cab, 4.3 X, RWD holds 4.5 quarts with filter; 1500, 4D Pickup Extra Cab, 4.8 C, 4WD, Automatic holds 6.0 quarts with filter; 1500, 4D Pickup Extra Cab, 4.8 C, 4WD, Part Time holds 6.0 quarts with filter; 1500, 4D Pickup Extra Cab, 4.8 C, RWD holds 6.0 quarts with filter; 1500, 4D Pickup Extra Cab, 5.3 0, 4WD, Automatic holds 6.0 quarts with filter; 1500, 4D Pickup Extra Cab, 5.3 0, 4WD, Part Time holds 6.0 quarts with filter; 1500, 4D Pickup Extra Cab, 5.3 0, RWD holds 6.0 quarts with filter; 1500, 4D Pickup Extra Cab, 5.3 J, 4WD, Automatic holds 6.0 quarts with filter; 1500, 4D Pickup Extra Cab, 5.3 J, 4WD, Part Time holds 6.0 quarts with filter; 1500, 4D Pickup Extra Cab, 5.3 J, RWD holds 6.0 quarts with filter; 1500, 4D Pickup Extra Cab, 6.0 Y, 4WD holds 6.0 quarts with filter; 1500, 4D Pickup Extra Cab, 6.0 Y, RWD holds 6.0 quarts with filter; 1500, 4D Pickup, 4.8 C, 4WD, Automatic holds 6.0 quarts with filter; 1500, 4D Pickup, 4.8 C, 4WD, Part Time holds 6.0 quarts with filter; 1500, 4D Pickup, 4.8 C, RWD holds 6.0 quarts with filter; 1500, 4D Pickup, 5.3 0 holds 6.0 quarts with filter; 1500, 4D Pickup, 5.3 3, Automatic holds 6.0 quarts with filter; 1500, 4D Pickup, 5.3 3, Part Time holds 6.0 quarts with filter; 1500, 4D Pickup, 5.3 J holds 6.0 quarts with filter; 1500, 4D Pickup, 5.3 M, Automatic holds 6.0 quarts with filter; 1500, 4D Pickup, 5.3 M, Part Time holds 6.0 quarts with filter; 1500, 4D Pickup, 6.0 Y, 4WD, Automatic holds 6.0 quarts with filter; 1500, 4D Pickup, 6.0 Y, 4WD, Part Time holds 6.0 quarts with filter; 1500, 4D Pickup, 6.0 Y, RWD holds 6.0 quarts with filter; 1500, 4D Pickup, 6.2 8, AWD holds 6.0 quarts with filter; 1500, 4D Pickup, 6.2 8, RWD holds 6.0 quarts with filter; 2500 HD, 2D Pickup, 6.0 K, 4WD, Automatic holds 6.0 quarts with filter; 2500 HD, 2D Pickup, 6.0 K, 4WD, Part Time holds 6.0 quarts with filter; 2500 HD, 2D Pickup, 6.0 K, RWD holds 6.0 quarts with filter; 2500 HD, 2D Pickup, 6.6 6, 4WD holds 10.0 quarts with filter; 2500 HD, 2D Pickup, 6.6 6, RWD holds 10.0 quarts with filter; 2500 HD, 4D Pickup Extra Cab, 6.0 K, 4WD, Automatic holds 6.0 quarts with filter; 2500 HD, 4D Pickup Extra Cab, 6.0 K, 4WD, Part Time holds 6.0 quarts with filter; 2500 HD, 4D Pickup Extra Cab, 6.0 K, RWD holds 6.0 quarts with filter; 2500 HD, 4D Pickup Extra Cab, 6.6 6, 4WD holds 10.0 quarts with filter; 2500 HD, 4D Pickup Extra Cab, 6.6 6, RWD holds 10.0 quarts with filter; 2500 HD, 4D Pickup, 6.0 K, 4WD, Automatic holds 6.0 quarts with filter; 2500 HD, 4D Pickup, 6.0 K, 4WD, Part Time holds 6.0 quarts with filter; 2500 HD, 4D Pickup, 6.0 K, RWD holds 6.0 quarts with filter; 2500 HD, 4D Pickup, 6.6 6, 4WD holds 10.0 quarts with filter; 2500 HD, 4D Pickup, 6.6 6, RWD holds 10.0 quarts with filter; 3500 HD, 2D Pickup, 6.0 K, 4WD holds 6.0 quarts with filter; 3500 HD, 2D Pickup, 6.0 K, RWD holds 6.0 quarts with filter; 3500 HD, 2D Pickup, 6.6 6, 4WD holds 10.0 quarts with filter; 3500 HD, 2D Pickup, 6.6 6, RWD holds 10.0 quarts with filter; 3500 HD, 4D Pickup Extra Cab, 6.0 K, 4WD holds 6.0 quarts with filter; 3500 HD, 4D Pickup Extra Cab, 6.0 K, RWD holds 6.0 quarts with filter; 3500 HD, 4D Pickup Extra Cab, 6.6 6, 4WD holds 10.0 quarts with filter; 3500 HD, 4D Pickup Extra Cab, 6.6 6, RWD holds 10.0 quarts with filter; 3500 HD, 4D Pickup, 6.0 K, 4WD holds 6.0 quarts with filter; 3500 HD, 4D Pickup, 6.0 K, RWD holds 6.0 quarts with filter; 3500 HD, 4D Pickup, 6.6 6, 4WD holds 10.0 quarts with filter; 3500 HD, 4D Pickup, 6.6 6, RWD holds 10.0 quarts with filter.

How often should I change the oil in my 2008 GMC Sierra?

Most 2008 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 2008 GMC Sierra?

Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 2008 GMC Sierra. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.

Other GMC Sierra years

2012 Sierra2011 Sierra2010 Sierra2009 Sierra2007 Sierra2006 Sierra2005 Sierra2004 Sierra2003 Sierra2002 Sierra2001 Sierra2000 Sierra1999 Sierra

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