Motor oil for Mercury Marine MerCruiser 2.5L Inboards
Type the engine variant of your Mercury Marine MerCruiser 2.5L Inboards to see the right engine oil and the manufacturer approvals.
Which engine do you drive?
Fuel and model year are enough - only the matching engines stay.
The power is on your registration certificate, field P.2 (in kW).
17 characters, on the registration certificate part I under field E. In Poland the vehicle is looked up by VIN, not by number plate.
17 characters, on the registration certificate part I under field E. In Poland the vehicle is looked up by VIN, not by number plate.
Oils for Mercury Marine MerCruiser 2.5L Inboards
e.g. for Mercury Marine MerCruiser 2.5L Inboards 2.5L 120 (1980–1989)
Mannol
Extra Gear Oil Getriebeöl GL-4 GL-5 LS 75W-90
75W-90MAN 342 Type M1 +6
From 7,26 €
7,26 € / LWolf
ExtendTech HM 10W-40
10W-40MB-Approval 226.5 +7
From 7,44 €
7,44 € / LMannol
Universal 15W-40
MB-Approval 229.3 +10
From 6,79 €
6,79 € / L
All oils for Mercury Marine MerCruiser 2.5L Inboards 2.5L 120 (1980–1989)
Fill quantity and viscosity by engine of the Mercury Marine MerCruiser 2.5L Inboards
| Engine | Model years | Viscosity | Fill quantity |
|---|---|---|---|
| 2.5L 120 | 1980–1989 | 10W-40 | 3.8 L |
| 2.5L Alpha One | 1980–1989 | not specified | 3.8 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 Mercury Marine MerCruiser 2.5L Inboards
| Fluid | Requirement |
|---|---|
| Axle & differential oil | 75W-90, 80W-90, API GL4/5, API MT-1 |
| Coolant & antifreeze | G11, G12 |
| Power steering fluid | Mercury, Dexron II D |
Which viscosity does a Mercury Marine MerCruiser 2.5L Inboards need?
We cover 2 engine variants of the Mercury Marine MerCruiser 2.5L Inboards. The most commonly approved grades are 10W-40. The fill quantity is 3.8 litres.
Which approvals does Mercury Marine require?
Mercury Marine mostly calls for the approvals Mercury Marine. An oil without the right approval can cost you a warranty claim.
Mercury Marine MerCruiser 2.5L Inboards engine variants
The oil finder covers these engine variants of the Mercury Marine MerCruiser 2.5L Inboards: 2.5L 120 1980–1989 and 2.5L Alpha One 1980–1989. Your engine is not listed? Type your vehicle into the search above.





