Oil and Maintenance Guide for 1985 Evinrude COM (43ci 2-stroke)
Before You Service the Engine
Before servicing the 1985 Evinrude COM (43ci 2-stroke), check the two-stroke oil specification and the manufacturer's lubrication instructions. Oil-product listings are a starting point; match the engine's required marine-oil standard before use.
What kind of oil does a 1985 Evinrude COM (43ci 2-stroke) take?
The available oil-product listings include HP Marine Synthetic 2-Stroke Oil, Synthetic 2-Stroke Injector Oil. For a service, choose oil that meets the engine’s actual application requirements, not just a product name.
Why is two-stroke oil different from four-stroke engine oil?
Two-stroke oil is formulated for engines that lubricate internal parts differently from a typical four-stroke engine. The correct oil must suit the two-stroke lubrication system; four-stroke crankcase oil is not an interchangeable substitute.
