Twin-clutch transmission fluid DCTF 1. For M3 vehicles with S65 Dual clutch transmission fluid DCTF 1. For M3 vehicles with S65 engines (from 03/2008) and for E92/E93 vehicles with N54 engines engine (from breakpoint: 03/2008) and for E92/E93 vehicles with N54 (from 09/2008). And for E89 with N54 engines (from 2009). engine (from breakpoint: 09/2008). Also for E89 with N54 engine (from ***** 2009 onward). ***** ***** *****