Mini Mad wrote:
Erm...The higher the octane, the harder it is to burn the fuel. The lower the octane, the easier it is for the fuel to burn. The reason higher performance engines need higher octanes is so that the gas/air compressed mixture does not ignite before the spark comes, which is known as pinging. By using a higher octane, these engines DESIGNED FOR HIGHER OCTANE can get more engery from the gas. If a lower octane was used, the mixture would ignite from the compression, heat, or whatever else that is not the spark and slowly destroy the engine.
If you put any higher octane in there, you are requiring the ignition system burn a mixture which is more resistant to burning THAN IT WAS DESIGNED FOR. That is why they say that you will not get any extra performance by using higher octane in engines which do not require it.
hahahahaha, i was halfway thru writing a big essay on why i think you are wrong. but just as i was going into some chemistry stuff i realised that you could well be right about higher octane being harder to burn.
EDIT: although now that i have posted this i begin to think i was right to begin with...
