Originally Posted by 98CoupeV6
There you go right there. Why the f are you running 93? higher octane is more resistant to igniting, meaning you have to coat the intake manifold with more of it before you get enough 93 evaporated to cause ignition.
www.howstuffwork.com
It seems like no one knows this!! No matter who I talk to, they alway think that higher octane fuel burn EASIER. I even had a college chemistry teacher thinking this. Thats why turbo cars require at least 93, detenation sucks.