Quote:
Originally Posted by DIE1000DEATHS
Yes, higher octane = less energy. Thus if you're not already getting any knock and such, the car isn't going to default to exceedingly aggressive timing or a/f ratios to take advantage of the anti-knock potential of the gas...
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No, higher octane = less likely to autoignite.
You will still make the same torque burning the same amount of high octane petrol -- it still is stoichiometric at 14.7:1.