1973 gear case lubricant

[94saleen]

Just wondering what the best lubricant is for the gears

 

[R.Johnson]

Re: 1973 gear case lubricant

Back then it was Hi-Vis, now anything equivalent.

 

[94saleen]

Re: 1973 gear case lubricant

what about sae 80w-90 GL-5

 

[R.Johnson]

Re: 1973 gear case lubricant

What about just using what's called for?

 

[jimmbo]

Re: 1973 gear case lubricant

what about sae 80w-90 GL-5

no

Use BRP/OMC Hi-Vis which is what was speced for your engine

 

[BillP]

Re: 1973 gear case lubricant

Standard marine gear oil is speced at 80-90 GL5. Standard auto gear oil is speced the same. Marine oil is claimed to be better for staying suspended with water. In the real world even auto gear oil stays suspended when gears are turning. Both types look like salad dressing when mixed...one just stays that way longer.

bp

 

[F_R]

Re: 1973 gear case lubricant

What size motor are we talking about here? The larger ones had power assisted shift. I would suggest you use BRP Hi-Vis in those.