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Gas Question....

Higher octane fuel is all about deterring preignition due to compression. If you don't tune for 100 octane, you will see no benefit unless your motor is already seeing knock

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Gas Question....

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09-15-2011, 02:10 PM	#2 (permalink)
GhastlyTT Base Member Join Date: Aug 2011 Location: OKC Age: 41 Posts: 17 Drives: '10 Z34 & '11 K46 Rep Power: 16	Higher octane fuel is all about deterring preignition due to compression. If you don't tune for 100 octane, you will see no benefit unless your motor is already seeing knock on 93 octane and 100 octane eliminates it. The other way is more dangerous. If you tune for 100 octane, you risk engine damage using 93 without a retune.

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