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Tempus · 06-17-2005, 01:38 PM

IIRC, Octane is just a measure of the branch chain hydrocarbon isomers. I can't remember the formula for it though.

Higher octane ratings just mean that there are literally a higher % of the octane isomers and opposed to the other thing (heptene?) which is still flamable as all hell but tends to explode (engine knock) early and easily.

06-17-2005, 01:38 PM	#27
Tempus Cooling Savant Join Date: Jul 2003 Location: Michigan, USA Posts: 456	IIRC, Octane is just a measure of the branch chain hydrocarbon isomers. I can't remember the formula for it though. Higher octane ratings just mean that there are literally a higher % of the octane isomers and opposed to the other thing (heptene?) which is still flamable as all hell but tends to explode (engine knock) early and easily. __________________ Thou art God.