Quote:
Originally Posted by Chan Chee Hoe
Actually Octane has NOTHING to do with power,it is just to prevent knocks.
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Octane rating has a LOT to do with power output. High octane fuel means you can advance ignition timing to get more power. Aggressive ignition timing + low octane fuel = detonation. Low octane fuel in a en EFI car = retarded ignition timing.