Originally Posted by King Luis
explain? BMW requests 25k which is too long in my opinion. i change it in half the time with Castrol Motorsport TWS oil only.
BMW does that to make your car expire faster so that you can purchase a new one from them. Any Motorsport engine should have a 5K oil change interval. TWS is the only oil that should be used for that car and it should be all the time, not half the time only.