What's the best gear oil to run in these diffs?

 

1% milk with half a stick of butter melted in

edit: but seriously, a Redline 75w90 should be fine. What does Cusco recommend?

 

I'm having a hard time finding it in google. It appears that Cusco makes there are own 80w90 oil, but I know there will be an alternative.

I did see a 350Z guy say that he was running redline 75w90.

I want to make sure that I run the correct oil with the clutches.

 

KAAZ says not to use synthetics. they also make their own oil.

I'd just use whatever your favorite dino oil is.

 

Check out Torco. Welcome to TORCO ADVANCED LUBRICANTS Website 2007

 

i always run 75w90 redline oil in my clutch-type diffs