Quote:
Originally posted by mt.biker
dimtry its all about the compression ratio, 90+ burns differently and thats why your motor sounds like shit when you fill up with the cheap shit. BEcause the pistons aren't firing correctly!!!!
|
to add to that, the higher octane rating burns longer and more controlled. low grade such as 87 will burn in one burst, where as a 93 octane will burn more evenly through the compression stroke(my 10th grade chem teacher told me this 3 years ago) the rating is the puratiy of the gas though. its ppt(parts per thousand) i think, it should say on the rating thing at the pump.
__________________
Black Vtec Prelude-h22a power'd
Many dreams come true, and some have silver linings.
I live for my dreams and a pocket full of gold.