Just joined XOP and I love it! I p/u my 2011 X5 35d and it's awesome. I am a little neurotic about taking care of my "stuff" no matter what it is. I plan on doing an oil change around 1500 miles. There is sooo much info on oils on the web and this site. Can someone just tell me what they think is the best oil for my diesel? I live in the N east and fall is right around the corner. Thanks in advance. I'm sure I will be sucked into this site for hours again today!