Originally Posted by knifegun
I would say based on the following:
* Financial well being (i.e. can you afford to buy another engine w/o breaking a sweat)
* Risk taking threshold
* How long you are planning on keeping your car
What I meant was, what do you base the 9k oil change on? What makes you associate oil change interval with a blown engine? What evidence do you have that BMW's oil change interval is inadequate?