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Gear oil

3

37 chief

Well-known Member
Is there much difference using 140 wt in a transmission what recommends 90 wt. Take into consideration the transmission has many hours on it and everything is well worn by now. I have been using 85-140wt. for a few years already. The reason is, I can probably get a full pail of 140 wt. very reasonible. Stan
 
what kind of transmission? straight 140 may be real thick, thick gear lube makes for hard shifting when the trans is cold
 
It'll probably finish off your well worn transmission.
Any time I used heavy gear lube like that in something meant to have lighter oil, things starved for oil. Put the correct grade in... or a lighter grade.
The heavy oil might not matter much in warm weather, but once you get into cooler days, it will matter.
85W140 is just about like an EP0 grease...

Rod
 
Well, I put 80-90wt in my Deere "B" tractor when it's supposed to have 140wt in it. The transmission whines and groans because of the large tolerances in the transmission. If I put 140 in it, it'll probably sound a lot better.

In your case, Just keep running 85-140. 140 is constantly thick.
 
The 140 gear oil will work just fine. That is what we ran for years in all our working two-cylinder tractors. It is better for your transmission than the much thinner GL-5 85W-140. It is better to use thinner oil when it gets really cold but in normal weather you can use the 140 with confidence. That is what I use. Mike
 
Lucas lube and the lighter weight gear oil is the answer. Friend of mine drag races achohol cars. They have not lost a rear end since they switched to Lucas lube.
 
The transmission is in my A/C Model M crawler. Don't do much shifting. Usually pulling my disc in 3rd. most of the time. Stan
 
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