Lower end oil??

[kevyrev]

I want to change the oil in my 1990 70hp Evinrude lower unit but can't seem to locate exact oil selection online. Can any one give me any guidance as to what I should use? I'm ordering a pump and crush washers just need to know a good brand and oil weight, thanks!

 

[racerone]

Use BRP brand----HI-VIS-----Gears bearings and shafts are too expensive to skimp on oil.----See a boat shop.

 

[kevinj]

Yep, BRP HPF Pro is what I use in my lower unit. A lot of people use Quicksilver because that's what is readily available at Walmart. I suppose that's okay, but you have to be careful since they sell 2 different versions. The Premium gear oil is for lower units below 75HP and the Extreme Performance is for everything above. I'm sure it's probably fine, but I'd rather use the oil that was designed specifically for my gear case.