Quote:
Originally Posted by SXE10
I've got the same AZ6 6MT in my Altezza & I run Redline MT-90 in it. It's the perfect oil for this transmission, much better than the factory fill. Amsoil MTG is another worth looking at.
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A Subaru tech over on another BRZ forum runs MT90 and has good results with it.
It's going to be easier to find a GL-4 oil since the API considers GL-3 obsolete.
-Dennis