Originally Posted by ONE-77
I'm new to M3, i came from an F30 with oil changes occur every 15000 mls, just read through the forum and there r different posts about different oil change frequencies for M3. its logic that the answer is: depends on how you drive it but for a new car 2013 that I am not planning to track, how often do I expect the oil changes to occur.
BMW has 15k as their schedule. People here (including myself) feel that this is too long even for a full synthetic because our engines rev so high. To improve longevity, I do an extra interval every 7.5k miles and I let me car warm up about 5 minutes prior to driving it. Those who track or constantly beat on their cars usually do it every 5k. It's a really simple DIY and the kit is only $160.