fluid for trim pump-what can be used?

[rocket1968]

I bought some of the mercruiser overpriced fluid, but am checking what can be used in my 1976 pump?

 

[Fishermark]

Re: fluid for trim pump-what can be used?

Your 1976 trim pump probably called for 20wt motor oil. Try some 10w30.

 

[rocket1968]

Re: fluid for trim pump-what can be used?

Really, I thought it would have been power steering fluid. I can get 20W, or I can use 10w30. Does it make a difference? Figure that is better than the $8 a quart for mercruiser fluid.

 

[Fishermark]

Re: fluid for trim pump-what can be used?

Good luck finding any 20wt. I ended up using 10w30 in mine. I don't know if you can read it in the picture or not, but here is a shot of the manual for an older model than yours.... it suggests 20wt oil. I don't know if yours is the same or not.

 

[hoot]

Re: fluid for trim pump-what can be used?

been using 10-30 and 20-50 motor oil for 32 years in a 78 mercruiser. works fine.

 

[johnzonh]

Re: fluid for trim pump-what can be used?

just topped off mine (same pump pictured) with 10-30....works like a charm...and didn't cost me a dime

 

[buzzm19]

Re: fluid for trim pump-what can be used?

Hey guys, I read a lot on this and auto trans fld is fine and it is also 20w, 26' nova/w twin 350's. Buz