What oil for lower end?

[craigman]

Fellas,
1974 merc 85hp. What oil does the lower end take? Is it a special oil?
thanks for any info!
Craig

 

[Alumarine]

Re: What oil for lower end?

I believe Mercury Premium or High Performance oil will work well.

 

[craigman]

Re: What oil for lower end?

So i take it, it's not regular oil or gear lube then?

 

[treker]

Re: What oil for lower end?

The oil that I have from the merc dealer just says Hi Performance Gear Lube they don't tell you the weight (viscosity) on purpose because they sell the oil for 16.00 per quart

 

[craigman]

Re: What oil for lower end?

$16 a quart? Yikes!!!!!

 

[treker]

Re: What oil for lower end?

That what I said, but I have changed mine twice and still have a couple ounces left

 

[dwmmatt23]

Re: What oil for lower end?

Quicksilver hi performance is a 80w-90

 

[jigmister]

Re: What oil for lower end?

so is it safe to use automotive 80w/90 gear oil or is there a marine diffence here beyond inflated cost?

 

[j_martin]

Re: What oil for lower end?

so is it safe to use automotive 80w/90 gear oil or is there a marine diffence here beyond inflated cost?

Marine gear lubes are designed to keep a fair amount of water in suspension to limit the damage it would do.

I don't think I've paid over 10 bucks for merc high perf gear lube. Whatever it's cost, it's well worth it for the extra protection it gives.

 

[treker]

Re: What oil for lower end?

Marine gear lubes are designed to keep a fair amount of water in suspension to limit the damage it would do.

I don't think I've paid over 10 bucks for merc high perf gear lube. Whatever it's cost, it's well worth it for the extra protection it gives.

I would also continue to use it, the quart I bought was at a marina at the lake, like gas stations by the exit ramps, I'm sure they get top dollar. Also as I said I have changed twice with a bit left over, so even at the high price it works out to about 6.75 per change, and I know I am using what Merc reccomends