Thread: Transmission and diff fluid for 2020 BRZ
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Old 01-05-2023, 10:42 PM   #10
SCFD
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Quote:
Originally Posted by CSG Mike View Post
Yes

It's more shear resistant than a GL-4 rated fluid.

I thought there was something about GL-5 fluid that is bad for synchros though? Or, maybe it's something that doesn't universally apply to all GL-5 fluid?
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