Type of oil to use

[Threest20]

Hey all, dumb question, cant seem to find the answer, sorry for asking but what type of oil do i use for my 1988 mercruiser 3.7? thanks!

 

[Rocky_Road]

Re: Type of oil to use

This is the latest Mercruiser list:

 

[Winsok]

Re: Type of oil to use

Hey all, dumb question, cant seem to find the answer, sorry for asking but what type of oil do i use for my 1988 mercruiser 3.7? thanks!

should be fine using 15/40 in it, or even straight 40 weight. and was just gunna say the manual probably says 25/40

 

[Threest20]

Re: Type of oil to use

Thanks!