gear oil?

Joined
May 3, 2011
Messages
26
i got a simple question, might be a dumb question but what type of gear oil is used a 1972 johnson 25 hp. is it jus like 90w-80 or special kind, havnt got time to get me a manual yet
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
28,106
Re: gear oil?

Mechanical shift motors use a marine gear oil. It will typically be SAE 80-90W, with marine additives.

Electric shift motors (made by Johnnyrude) use Type C gear oil.

Get the right stuff
 

hidef

Lieutenant
Joined
Aug 22, 2009
Messages
1,465
Re: gear oil?

Your 25 will use 80W90 or 90W as long as it has the GL-5 rating it is fine.
 
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