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Differential fluid question

Posted: Thu Aug 22, 2019 4:59 am
by jeeptj1
I’ve looked and read all the opinions on the different thoughts on this. So my question is just a simple yes or no answer. Can I use 90 weight mineral oil gl1 api in my differentials. I have a couple of gallons of it and don’t want to waste it. Thanks John jr. 1952 M 38

Posted: Thu Aug 22, 2019 9:26 am
by wesk
NO

Posted: Thu Aug 22, 2019 3:44 pm
by jeeptj1
Thanks Wes. John jr

Posted: Fri Aug 23, 2019 5:58 am
by jeeptj1
Wes, Can I use the 90 gl1 mineral oil in the tranny and transfer case? From reading the million threads, I’m pretty sure it’s ok but would like the yes or no. Thanks. John jr.

Posted: Fri Aug 23, 2019 11:07 am
by wesk
YES

Posted: Fri Aug 23, 2019 2:11 pm
by jeeptj1
Wes thanks again. I’m not trying to get out of reading info on these things, there’s just a lot out there for my brain to suck in. Lol thanks again. John jr