Two reasons. One BP elected not to pay the money to join the Top Tier group. Two BP 91-93 octane with invigorate is the only BP gas to meet or exceed Top Tier standards. Top Tier requires all three levels of octane meet their standards to get the listing. BMW recommends BP fuels because they are saying to use the ultimate or 91-93 octane version of BP fuels. I religiously use BP, Shell and Chevron and my cars have always run well.
Originally Posted by flobey540
What's interesting to me is the new 2012 manual talks about fuel quality on page 264. At the bottom it mentions "BMW recommends BP fuels". Okay, got it.... However if you go to http://www.toptiergas.com/retailers.html
- a site supposedly recommended by BMW and 5 other automakers - BP is not on the list for recommended retailers. Just marketing?
~ 13 M3 My daily beater
~ 13 x5M Hers
- Previous BMW's - Way too many to list here (15)