I always use BMW oil and oil filter bought at local BMW dealer but have a local mechanic do the job. Do you think 3K miles is a little excessive as BMW oil and filter would last for at least 7.5K miles. But I have it done anyway. What do you guys think? Should I extend the oil life to at least 5K miles between oil changes? By the way, everything cost $72 including parts and labor. I dont mind changing early since its not that expensive but still think I am a little obssessive about having oil change. Thanks.