ZF 8HP fluid change - which fluid to use?
Doing a ZF 8HP fluid change on my F30. Confused about which fluid to use:
- ZF Lifeguard 8 (original spec)
- Fuchs Titan ATF 9134
- Ravenol ATF 8HP
Are they all the same? BMW dealer uses the ZF fluid but its expensive (25 EUR/liter, need 9 liters). The Ravenol is half the price.
Also, do I need to change the filter/pan or just drain and fill?
