Been using Mobil-I ATF since 91 on my 240D 4speed and now on my 5speed Gurkha with great results. The first thing that was noticeable was the smoohtness, especially in cold tranny as well as the level of noise going down. On my 5speed, i can shift with my fingers effortlessly and I have driven in 50c and -10c and the shifting never detiorated. Never had any problems with my seals either.

I thoroughly recommend Mobil-I ATF.