Quote:
Originally Posted by JasonG
I would get the exact type of gear lube suggested by the factory. Your lower unit is not something you want to second guess.
I own mercs and use merc lower gear case fluid. I would not think of any other brand even if it was free because it is what the factory suggests.
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You can put any kind of gear lube that you want in your lower unit. The big question is why would you want to put in anything other than what the factory recommends? A lot of planning and engineering goes into recommending a certain viscosity oil that will keep everything slippery. If you think you know more than the engine manufacturer about their engine, then go for it!
