Gear Oil

[jay1216]

ive got a 1990 120 force what

ive got a 1990 120 force what kind of gear oil shoud i use in the lower unit and what weight 90?

 

[galamb]

"90 weight or 80 weight or eve

"90 weight or 80 weight or even the blended 80/90 is fine. Use Marine gear oil or any gear oil that has a GL-5 rating (look on the back of the bottle at the stuff we never read)

"