Originally Posted by brocklanders
I wouldnt use aftermarket filters unless you change them every 3k. I used stp years ago while changing oil and filter every 10k and the filter deteriorated. stick with oem, as far as oil I have had good results with many other high quality oils. moble 1, castrol, red line and royal purple.
I don't know about stp but WIX is a pretty damn good filter if they make it for bmw.. WIX also costs a ton.