- 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 90 (1985 – 1992)  | Engine | Capacity | Intervals |
|---|---|---|---|
| 90 2.0 (1985 – 1987) | 3.5 / 0.5 | 7 500 km/ 6 months | |
| 90 2.0 (1987 – 1991) | 3.5 / 0.5 | 15 000 km/ 6 months | |
| 90 2.0 (1991 – 1992) | 3.5 / 0.5 | 15 000 km/ 12 months | |
| 90 quattro 2.0 (1986 – 1987) | 3.5 / 0.5 | 15 000 km/ 12 months | |
| 90 2.0 20V (1988 – 1991) | 4.5 / 0.5 | 15 000 km/ 12 months | |
| 90 quattro 2.0 20V (1988 – 1992) | 4.5 / 0.5 | 15 000 km/ 12 months | |
| 90 2.2 (1985 – 1986) | 3.5 / 0.5 | 7 500 km/ 6 months | |
| 90 2.2 (1986 – 1990) | 3.5 / 0.5 | 7 500 km/ 6 months | |
| 90 quattro 2.2 (1985 – 1986) | 3.5 / 0.5 | 15 000 km/ 12 months | |
| 90 quattro 2.2 (1986 – 1990) | 3.5 / 0.5 | 15 000 km/ 12 months | |
| 90 2.3 E (1987 – 1992) | 4 / 0.5 | 15 000 km/ 12 months | |
| 90 quattro 2.3 E (1987 – 1992) | 4 / 0.5 | 15 000 km/ 12 months |