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glennpm · 09-18-2023, 01:09 PM

140 weight is okay for warm weather. The 140 doesn't shift properly in cool weather in my 39 transmission. I found that the 85W-90 is good year round.

Glenn

09-18-2023, 01:09 PM	#9
glennpm Senior Member Join Date: Sep 2014 Location: Wiscasset, Maine Posts: 2,086	Re: Sta Lube Gear Oil 140 weight is okay for warm weather. The 140 doesn't shift properly in cool weather in my 39 transmission. I found that the 85W-90 is good year round. Glenn Last edited by glennpm; 09-19-2023 at 06:16 AM.