Hmm,I'm in Australia so have used an aussie oil for many years. Nulon 1030,I had an engine replaced at 26000 many years ago work shop mistake. All up 7 100000 services, 2 on first engine and 5 on the series 2 and just about due for another one. Do i still love the skylines?you bet I do. Open the garage door on a Sunday and see that lovely big backend and can't wait to cruise. 😃😃😎😍