Quote:
Originally Posted by Def
Absolutely 100% incorrect on all counts. Burn kinetics at the same octane rating, but with a fuel made of up different compounds(more aromatics, more TEL, etc.), will be vastly different.
Tuning cars on different fuels, and learning a few things about combustion engineer makes this readily apparent.
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Ok then what does octane signify mr fuel expert? A higher octane fuel has a higher resistance to combustion. Without a higher resistance to combustion it would pre-detonate in high compression/boost applications just like street gas would. Since a higher octane fuel has a higher resistance to combustion it will not burn as efficiently in a low compression/boost application, because it NEEDS the extra cylinder temps/pressure, which will cost you some power. That is logic, I do not need an engineering degree to tell me that that statement is correct. You are right that the burn kinetics will certainly differ with the different compositions of different fuels at least, but I did agree with that statement already in my previous post.