Originally Posted by spic
So you can run all the octane you want, but it won't change your A/F ratio, but too low octane still makes you detonate from irratic burning?
don't quote me on it... but that is what happened to me. I ran the car w/ 101 octane and 94 octane and the air fuel didn't change. Significantly at least. The motor did knock w/ 94 octane as opposed to 97 and 101 octane. The air fuel may have changed but nothing dramatic. Nothing that i thought worth noting for. +- 1/2 point.