Dear Bob, I have a project I have to do for school on Octane. I've searched the internet and can't get any straight answers, so if you could help, that would be great. The octane rating is basically an anti-knock rating.
Ping occurs while the piston is on the upstroke.
These 2 numbers mean different things. Research Octane number is always higher than Motor Octane number. You may hear people discussing that in Europe, the octane is higher. Well, that is not exactly true. You see, in Europe, you might find 96 octane at a local gas station.