Bayrat

Been into boats my entire life and have experimented with different fluids in the lower units of various boats but lately there are some really high-end gear oils available for the high performance outboards as well as for the I/O drives.

Mercruiser makes a synthetic gear oil that many in the racing business use no matter the brand of outdrive, it is 75-90, same as the Jeep requires. Not cheap at around 10 bucks a quart but good stuff.

I am thinking that since it is possible to end up with water contaminated differential oil it might be a good move to use marine gear oil in the Jeep. That stuff is designed to mix with water and could save a differential but I am not sure if it would pose any other problem.

Has anyone here had experience with this?

Regards

pastorsteve

No but the first place I would start is to call them and ask about any testing that might have been done in differentials.