What octane is everyone running on their cars? I know the minimum is 87 octane, with 91 recommended and 93 recommended for M cars.
I’ve ran 87, 89, and 93 octane and have felt no performance difference. Also, I don’t hear any knocking on any octane thanks to the knock sensors.
Car is a g20 m340i with a b58.
Please use 93 in your car, your car will love you back. It’s not worth it to save few dollars on each refill.
Modern engines calibrate themselves if you use lower octance fuel so that they don’t knock, but still use 93 for your car’s best health.
If the manual says 91, put in 91. 93 won’t do anything for the health of the motor if it’s not designed for its use.
Very good advice!