Putting regular gas in a BMW, which is designed to run on premium fuel, can lead to several issues. BMW engines are engineered to optimize performance with high-octane fuel, and using regular gas can cause knocking or pinging, which affects engine efficiency and longevity. In the short term, the engine might run less smoothly and experience reduced power. Over time, this can lead to potential damage to engine components and decreased fuel efficiency. The vehicle’s onboard computer may adjust the engine’s performance to accommodate the lower octane, but this adjustment can result in reduced horsepower and fuel economy. For optimal performance and to avoid potential long-term damage, it’s best to follow the manufacturer’s recommendation and use the specified premium fuel.

Maintain your BMW’s power—stick to premium fuel!