1. Engine Code: A series of letters and numbers. This includes the engine block model and engine family, but may include others.
2. Capacity/Filter capacity: litres(liters). Engine oil fill quantity in case of oil change.
3. Oil Change Intervals: Engine oil should be changed at the latest after this time or after miles/km, whichever comes first.

The oil filter must be replaced every time the oil is changed, unless the car's owner's manual recommends otherwise.

	1	2	3
9-7X 4.2 (2005 – 2008)	Vortec	6.6	12 months
9-7X 5.3 V8 (2005 – 2008)	LM4	5.7 / 0.5	12 months