What gasoline does BMW recommend?
BMW recommends using TOP TIER Detergent Gasoline with a minimum octane rating of AKI 91. This gasoline also complies with the 10% or less ethanol requirement. It’s a higher standard with enhanced fuel detergency that helps to avoid driveability problems. Please see www.toptiergas.com for the latest participating retailers. Get better performance from a cleaner engine with BMW Group Fuel System Cleaner Plus If TOP TIER Detergent Gasoline is unavailable in your area, how can you make sure your BMW gets the full amount of detergent it needs to burn cleanly and run smoothly? For optimum cleaning, use one bottle of BMW Group Fuel System Cleaner Plus every 3,000 miles when refuling. This will help keep your BMW’s fuel injectors and intake valves clean, to get the most performance, Fuel efficiency – and fun – from every mile.