Lower Unit Oil in 85hp Force

[ksoiss25]

First boat, just wondering what type of gear lube to use for the lower unit. Would Quicksilver premium or high performance be better? Thank you

 

[SkiDad]

I've used both with good results, just don't mix.

 

[jerryjerry05]

The drain plug on the mid eighties leaked a small bit on all of the motors I've had.
Even sealing with pipe dope or thread sealer didn't help.
I check and change 2-3 times or more a year.(I'd really hate to have to replace the lower).
I use 80-90 from Wally World.
For my customers I use Mercury/Mercruiser gear oil.
And replace the fill/drain seals,EVERYTIME!!!!

 

[ksoiss25]

Thanks guys!