who makes gl-4 trans oil 80W90?
 

Went to 5 places today looking for a true GL-4 trans oil.

Found a GL-1 for pre 1953 Ford Tractors.

Some bottles say GL-4, GL-5, which is fine for rear axle, but not a brass ring sychro trans.

Don't want a synthetic. Just good old fashioned GL-4 suitable for a vintage trans.

Re: who makes gl-4 trans oil 80W90?
 

PM Kurt Burdick, he has a brand he recommends.

I had already bought the Lucas non synthetic

Ryan

PS: How's it going?

Re: who makes gl-4 trans oil 80W90?
 

Brad penn makes a great GL4 80W-90 for under $10 / qt through summit. Works great in Muncies.

Re: who makes gl-4 trans oil 80W90?
 

Yep Brad Penn. Only oil I use in my cars.

Re: who makes gl-4 trans oil 80W90?
 

Sta Lube makes it.........

https://www.napaonline.com/napa/en/p...239/SLRSL24239

Re: who makes gl-4 trans oil 80W90?
 

Yea, I was going through my cabinet of oils, etc. and found an old Sta-Lube container, and remembered I got it at the NAPA warehouse.

I knew I had tracked some down for the muncie. This is for a New Process 542 5 speed from a dump truck. NAPA store here in Guthrie is closed on Sat.

And... turns out is is available even cheaper from Amazon.

Sta-Lube one gallon

Re: who makes gl-4 trans oil 80W90?
 

Lynn, Brad Penn has the GL4 for Muncie Trans., check their website.

Re: who makes gl-4 trans oil 80W90?
 

Sta Lube....NAPA sells it.

Kurt [img]<<GRAEMLIN_URL>>/biggthumpup.gif[/img]