What kind of gas does 2006 BMW 325i use?

i just bought a 2006 BMW 325i and i just filled regular. Will it hurt my engine?What kind of gas does 2006 BMW 325i use?It takes premium. On the inside of the gas door it says to use 91 octane. That is premium. While you can physically use regular, the engine computer will reduce power (to prevent knocking, but it won't do this until after it hears some first) and it will not be as efficient. This reduces mileage, which ends up costing you more in regular gas than you would have spent in premium in the first place. Use premium, it's what the engine was designed for by engineers.What kind of gas does 2006 BMW 325i use?All BMW's use V-Power or 93. By putting cheaper gas, you're not saving any money. Your car will drive less, so it balances it out. If your car did 300 Miles on 93, with the regular, it will do 250-270 miles. Also it's bad for your engine, so the outcome is worse.