Hi, Not sure how that GTR is doing that, as 3-4 hard laps at Silverstone and all the temps are thru the roof. Road car Gearbox is reknowned for overheating its oil when you push them hard, explains why the Nips had the GPS fitted to them all. Not sure you could do 2 consec laps at the Ring with 30 Degree plus ambient air temp. Would do a fully Fried English though. Regards, The Gorilla.