75 hp merc Lower unit oil

[Dennis G]

1996 2 stroke oil injected. I can't find my manual. What oil is used for lower unit & approx how much. I just checked it and it only had about 16 ounces in it. Thanks in advance for replies. Dennis G.

 

[dajohnson53]

Re: 75 hp merc Lower unit oil

You can also use any marine grade gear oil if you can't find the Quicksilver isn't convenient. I've found there isn't an appreciable cost savings (maybe a buck a pint) between generics and name brands, so don't do it just to save money. Most autoparts stores sell marine gear oil labeled by major oil companies as well.

 

[Perfidiajoe]

Re: 75 hp merc Lower unit oil

I would use Merc. Quicksilver High performance, or Quicksilver Premium lower gear oil. You must have drained it to know there was 16 oz., so buy a quart, & a hand pump, pull the fill plug(Bottom), & the vent plug(top), Pump it in until it comes out the vent, put in vent plug, remove pump hose install drain/fill plug. Don't forget check the plug washers! Save what you don't use you'll use it next time. Good luck, Joe

 

[Dennis G]

Re: 75 hp merc Lower unit oil

Thanks, I live in the Calif. foothills so closet marine parts (West Marine) is 37 miles down the hill. Kragen Auto had Valvoline marine gear oil and it specifies Merc so I just bought four tubes ($3 for 9 oz.)since I don't know what the fill amt. is. I guess it should do the job. Thanks again for replies. Dennis G.

 

[dajohnson53]

Re: 75 hp merc Lower unit oil

That's what I use too (valvoline from Schucks). I figure it's a good name in oil.