Engines:
Through 1998: 10W40
From 1999: 5W30
S54 (2001 to 2003) plus others specifically requiring Castrol RS or TWS Motorsports oil: 10W60
Manual Transmissions:
Through 1985: MTL
1986 through 1992: may have a label affixed to the passenger side bell housing
- Green Label: MT-90
- Red Label: D4ATF
- No Label: MTL
Green and Red labeled transmissions have 17mm external hex drain and fill plugs.
Non-labeled transmissions have 17mm internal hex drain and fill plugs.
1993-on: D4ATF
2006 Xi Transmissions: D6ATF
Automatic Transmissions: D4ATF
Differentials: 75W90
2002 on with multi-disk limited slip: 75W140