Quote:
Originally Posted by E90Fleet
Use of lower octane fuel will cause the ECU to pull timing from the engine to prevent knocking, lowering power output and possibly increasing gas usage.
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Exactly. You said it in fewer words than I did. I just don't understand why someone would pay twice the price for a car than they really need to, then try to save a buck, maybe a buck and a half on a fill up. It won't hurt anything if you have to use lower octane, or accidently use it, but I just don't understand why someone would do it willingly. All that money spent for a high performance vehicle, then dial it back and get less performance and less gas mileage...
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