I have a 86 omc cobra 5.7 outdrive and i was wondering if it was okay to put the mobile 1 LS syntheic gear oil 75-90w in it. I saw a post earlier about using Mobile 1 GL-5 syntheic gear oil 75-90 but all i can find is the LS gear oil.
Will this be okay or should i drain it back out and look for...
