90 HP Mercury 4 Stroke Lower Unit Oil

[oldblue]

Killing time so figured I would change the lower unit oil.

Got it drained to find out I don't have enough of Mercury gear oil. Think it was last summer I went looking in town and at the local general boat repair and screw up place, all they had was

Honda 80/90 Hypoid Gear oil. I am sure that is what they use in every outboard they service.

It says it is compatible with applications calling for API-4 and GL3 products.

Would you use it, or should I wait until I get to wherever to buy Mercury gear lube?

It is 125 mile drive one way to find a Merc dealer.

If I should wait til I get some new oil, should I pump the old oil back in it to keep it wet?

[EuropeanAM]

You "could"- but I would strongly recommend the Mercury or Quicksilver High-Performance for best results. You can probably pick it up at a Wally World or large fishing/camping/outdoor retailer.

Moving your post to the dedicated 4-stroke forum for you... please be sure to provide your serial number when posting.

Thanks!

[oldblue]

Thank You Don.

[davesz518]

<See Announcements> or Don's place

[leonreno]

Try Walmart, they might have the Quicksilver equivalent oil, they used to not sure they still carry it or not.