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.
One of the cannonball runs I watched… I think it was with the AMG… they had a 93 octane tune on the car and when they started to get out west where the best available is 91 the car fucked up. Not sure why there isn’t 93… especially in California where it’s $5 a gallon.