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Suitable for Opel Kadett A
For the Opel Kadett A, the manufacturer specifies motor oil 20W-20 (API SJ) or 20W-50 (API SC, API SD, API SE). All 2 engine variants of the Opel Kadett A take the same oils, so the selection below applies to every one of them.
Fill quantity and viscosity by engine of the Opel Kadett A
| Engine | Model years | Viscosity | Fill quantity |
|---|---|---|---|
| 1.0 | 1962–1965 | 20W-20, 20W-50 | 2.8 L |
| 1.0S | 1962–1965 | 20W-20, 20W-50 | 2.8 L |
Fill quantity including an oil filter change, taken from our vehicle data. The change interval is set by your service book, not by the oil.
Other fluids for the Opel Kadett A
| Fluid | Requirement |
|---|---|
| Manual gearbox & axle oil | 20W-20, ACEA E2, API CF-4 |
| Axle & differential oil | 85W-90, API GL5, DTFR 12B100 |
| Brake fluid | DOT 3, FMVSS 116 DOT 3 |
| Coolant & antifreeze | G11, G12 |
Which viscosity does a Opel Kadett A need?
We cover 2 engine variants of the Opel Kadett A. The most commonly approved grades are 20W-20 and 20W-50. The fill quantity is 2.8 litres.
Which approvals does Opel require?
Opel publishes no approval of its own: what counts is the viscosity and the ACEA or API class in your owner's manual.
Opel Kadett A engine variants
The oil finder covers these engine variants of the Opel Kadett A: Kadett A 1.0 1962–1965 and Kadett A 1.0S 1962–1965.




























