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- Suspension, Brakes, Drivetrain (https://www.miataturbo.net/suspension-brakes-drivetrain-49/)

- - 1.5 way Cusco RS diff (https://www.miataturbo.net/suspension-brakes-drivetrain-49/1-5-way-cusco-rs-diff-37280/)

johnwag

07-20-2009 04:33 PM

1.5 way Cusco RS diff

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

Savington

07-20-2009 05:16 PM

1% milk with half a stick of butter melted in

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

johnwag

07-20-2009 05:26 PM

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.

y8s	07-20-2009 05:33 PM

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

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

mazspeed

07-25-2009 03:02 AM

Check out Torco. Welcome to TORCO ADVANCED LUBRICANTS Website 2007

UrbanSoot

07-25-2009 06:43 PM

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

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