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.
Wish I could get 93, highest in California is 91. My tuner said CA gas is shit and recommended a gallon of e85 at fill ups.
Data logs look good
FYI, on the inside of your fuel door you’ll find AKI 93.
The engine will muster on lower octane fuel but, it’s a high compression engine that does best higher octane gasolines.
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.
93 with a tune though. Otherwise 89 or above is fine.
Depends where I fill up. If I am at my shop, I run 40 amp A/C. If on the road, I run 199 amp D/C.
Used 98 in Europe in my previous petrol cars
93 til infinity
91 nothing less