75w90 or 80w90
75w90 or 80w90 I'm getting some JEGS 4.10 gears installed next week on my 02 WS6 6-speed. No one can give me a definitive answer on which gear oil to use and why. I can read my manual all day long, but I'm not installing 3.42 back there. Thoughts?
I would go with the 80w90 gear lube, it is slightly thicker and can make a set a set of gears sound slightly quieter. Bob
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ATI ProCharger and Moser Sales 260 672-2076
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E-mail: brutespeed@gmail.comob@brutespeed.com
https://brutespeed.com/ Link to website
ATI ProCharger and Moser Sales 260 672-2076
PM's disabled, please e-mail me
E-mail: brutespeed@gmail.comob@brutespeed.com
https://brutespeed.com/ Link to website
I've been doing a little more research on this. Seems 80w90 is the way to go w/ 4.10 gears. I'm down between Royal Purple and Lucas Oil. Anyone have experience w/ any of these or others?
synthetic is great if you're not beating on it or trying to squeeze every last mpg out of the rear.
