BMW X Series - Tech Talk For All Gen Of X Series
hi guys new member here, I just purchased a 2006 BMW X5 4.4i with the n62 engine, the dealer says to use 5W-30 castrol oil in it but bearing in mind its age and the fact that round where I live its unbelievably hot it gets upto 52C in summers so I was thinking maybe 5W-40 would be better. I use...