No, high octane is NOT easier to burn. In contrary, in the cold weather, some premium-fuel engines can even uses regular gas without compromising the performance.Although I agree to put regular 87 octane gas (which I do) , I have just been thinking though with all that crappy cold weather.....would a high octane gas start or ignite more easily?
octane level is not a percentage of anything (how would you explain 110 octane racing fuel?)MetalCord said:It's a percentage of octane (as opposed to heptane) molecules. In other words, 87 octane actually means that the gasoline is 87 percent octane - 13 percent heptane (or some other molecule).
The timing is computed optimally by the OEM ECU for the factory compression ratio (10 for N/A 2.0L and 2.3L).Could you just advance the ignition timing to burn the higher octane fuel more effectively? If the ECU is set for 87 octane, and that the knock sensor is used to adjust timing, it will not "know" that higher octane gas was used since there is no knocking.