- 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.
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Model: Audi A8, 4D (1997 – 2002) (USA)  | Engine | Capacity | Intervals |
|---|---|---|---|
| A8 3.7 V8 32V quattro (169 kW) (1997 – 1999) | AEW | 7.5 | 7 500 miles/ 12 months |
| A8 4.2 V8 32V quattro (228 kW) (1999 – 2002) | AKB, AUX | 7.2 | 7 500 miles/ 12 months |
| A8 4.2 V8 40V quattro (220 kW) (1997 – 1999) | ABZ | 7.5 | n/a |
| S8 4.2 V8 40V quattro (265 kW) (2000 – 2002) | AYS | 7.2 | 7 500 miles/ 12 months |