Quick question

[TRevor Lawson]

Hi ,is the ep 90 gear oil used in the lower leg on out brds any different to ep 90 used in car axle's,? it is more expensive, .
thanks , Trevor

[Nos4r2]

Originally Posted by TRevor Lawson

Hi ,is the ep 90 gear oil used in the lower leg on out brds any different to ep 90 used in car axle's,? it is more expensive, .
thanks , Trevor

What does your outboard specify? Automotive EP90 doesn't have the anti corrosion additives and emulsifiers in it that marine gear oil (it's not necessarily EP90 either) does.


I wouldn't use anything other than marine gear oil. For a saving of a few quid, you could condemn your gearbox if a seal lets seawater in.

[davej]

Use the right oil because it has all the correct additives and as the seals in my box leaked last year I know how important it is that you have the right oil in there.

I don't really know how long mine had water in but the gears were perfect despite having very milky oil/water.

I buy the Sierra oil from Keyparts and have a small pump that fits on the bottle, its really easy not a lot of cash to do it this way.#

Small but important point is to replace the drain plug washers with new ones at least one a season as even a small leak seems can allow water in and they only cost a few pence.


Dave

Originally Posted by TRevor Lawson

Hi ,is the ep 90 gear oil used in the lower leg on out brds any different to ep 90 used in car axle's,? it is more expensive, .
thanks , Trevor

[TRevor Lawson]

Hi thanks for your help, will take your advice on oil, (its just i work in a garage & have gallons of car type oil )

Trevor