| I see some applied theory here. Defiant and mrnickleye are homing in on the magic of high octane.
A better "explosion" is a common statement. Actually, it's somewhat accurate. Premium will yield a slower burn envelope when ignited. This cooler, longer duration burn does indeed prevent pre-ignition. Low octane produces a rapid burn which is perfect for lower compression.
The Honda guy running premium is wack, it does nothing for performance. But don't tell him, they never believe it. After all, high-octane just sounds better. Should run it in our lawn mowers to impress the neighbors.
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