• Engine: Engine Code. A sequence of letters and numbers. This includes the engine block type and engine family, but may also include other information.
• Capacity: Capacity/Filter capacity in litres(liters). Engine oil fill quantity (Service fill).
• Intervals: Oil Change Intervals (use: normal). 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.

	Engine	Capacity	Intervals
Alero 2.2 16V (2002 – 2004)	L61	5.5	12 months
Alero 2.4 16V (1999 – 2001)	LD9	3.8	n/a
Alero 3.4 V6 (1999 – 2004)	LA1	4.3	12 months