Originally Posted by AlanAZ
I intend to replace my gearbox fuild with Redline MTL (based on previous good experience with it) soon, but since I live in the Phoenix area, I'm considering using MTL90 to cope with the extreme heat here.
Anyone have experience or thoughts on this? Thanks.
According to Turnermotorsport.com, BMW manual transmissions require ATF D4 (yes Automatic Transmission). I've also read elsewhere that BMW has recommended D4 for all of their manual transmissions since '96.