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Oil api

Posted: Tue Sep 03, 2019 11:28 am
by Brickren
So I'm trying to find out the proper API designation for oil. I come up with mil spec 2502 b. I got a lot of obsolete numbers but I can't find a straight answer. I see some people are running 20 50 but it's the end of the year and the manual says 30 weight. So I want to find the correct API. I tried searching the forum came up with 400 plus enturies but I still didn't see what I was looking for

Re: Oil api

Posted: Fri Sep 06, 2019 10:16 am
by rmel
Don't know if you read this thread, ... ght#p87171

IMHO, there are two things to think about here w.r.t. Oil, proper levels of anti-wear
for these Antique engines with solid lifters, and viscosity -- mono or multi-weight.

Re: Oil api

Posted: Fri Sep 06, 2019 10:47 am
by Brickren
Thank you. This is exactly what I was looking for.