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Recent field experiences have shown a significant increase in various drivability complaints due to excessive carbon deposits in engines' combustion chambers on the intake valves and fuel injectors. The overall increase in carbon deposit accumulation is generally attributed to poor gasoline quality; namely, a low level of cleaning additives and fuel contamination.
Combustion chamber deposit formation is a by-product of the gasoline burning process. Fuel injector and intake valve deposits may become less troublesome with the recently introduced Top Tier Detergent Gasoline deposit control standards. However, vehicles that do not exclusively use a Top Tier Detergent Gasoline or are regularly driven under sever conditions such as stop-and-go traffic, high ambient temperatures and high altitude, can experience performance problems caused by intake system and combustion chamber deposits.
The most common complaints may include:
BMW recommends using TOP TIER Detergent Gasoline with a minimum octane rating of AKI 91 and with alcohol content of less than 10% by volume (or any other oxygenates with up to 2.8% of oxygen by weight). Only the exclusive use of Top Tier Detergent Gasoline provides the full benefit of reducing deposit formation.
Visit BMW Toronto's Service Department at 11 Sunlight Park Road, Toronto, ON, M4M 1B5 or call us at 416-623-4269 to book your fuel injector flush appointment today.
* Offer is not applicable to vehicles with turbocharged engines.