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What grade of oil in the engine?

Posted: Thu Sep 10, 2026 4:08 am

by tlake

For the early pre 1982 3.5L, or I suppose any member of the general M30 family, is 20W 50 like the handbook says, still correct

Thanks

Re: What grade of oil in the engine?

Posted: Fri Sep 11, 2026 11:20 am

by Mike W.

Yep, 20-50

Re: What grade of oil in the engine?

Posted: Sat Sep 12, 2026 12:59 am

by tlake

Mike W. wrote: Fri Sep 11, 2026 11:20 amYep, 20-50

Thanks Mike