What type/brand oil does everyone use? in a 2005 M3 brochure, i noticed that on the bottom of the back page it said, "BMW recommends Castrol". However I ussually use Mobil 1 5w-30. Bavauto likes lubromoly, never really heard of it since i bought the catologue. Whats everyone use?
Also, which oil filter does everone use? ive heard MANN is good, but mines due in a week or so and i want to know what to get.