I've read the threads on transmission and FD oil weights and called the dealer and what I'm coming up with is confused. I bought the Royal Purple full synthetic 75w-90 for the transmission and Mobil 1 75W-145 for the FD but the dealer is saying 75W-145 for both transmission and FD. The new owner's manual doesn't list the oil for the transmission or FD. The threads seem to be conflicting.
Mine is an '05 GS. I recall my old owner's manual referencing 75W-90 for the transmission but I can't recall.
Does anybody know the latest information on what oil viscosity to use in both? Is the BMW stuff really special?
Thanks,
Eric
Mine is an '05 GS. I recall my old owner's manual referencing 75W-90 for the transmission but I can't recall.
Does anybody know the latest information on what oil viscosity to use in both? Is the BMW stuff really special?
Thanks,
Eric