Quote:
Originally Posted by Skye
Is subaru gear oil as used in STI transmission OK for BMZ tansmission?
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No, the AWD design Subaru uses means the tranny case also houses the front differential. The front diff is a hypoid design and needs the GL-5 requirements. Our FRS/BRZ transmissions are just that, transmission only. Some of the GL-5 stuff could deteriorate brass synchros, etc. Use something GL-4 rated.