10forcash wrote:

BMW gearbox? don't think so.... ZF maybe
Did they manage to change the sump pan in the end? last I heard was the crossmember was preventing them getting off due to a vertical pipe at the front of the pan

Just did a sump pan change and double flush on mine The gtr info says to remove the 2 RH engine mount bolts and raise the mount 50mm to enable removal of the pan. Doesn't work If you jack up a bit more it raises the whole vehicle You need to remove the bolt from the transmission mount at the rear of the gearbox on the rear cross member. Then it gives enough clearance as there is a vertical tube in the sump pan on the RH side about 8cm long. After the double flush the rough and hesitant changes disappeared After an arduous of road trip I examined the oil and it was still a bit dark so I did a drain and refill with engine running I had just done 80,000km so it is advisable to check oil at 60,000km if you do "High speed driving, Heavy towing or High temperature driving" (ZF web site but they advise 80-120,000km)