Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Less mpg on premium vs regular
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Old 12-05-2012, 06:41 PM
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tnovot tnovot is offline
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I wouldn't think it would make any noticeable difference. Unless you have a controlled test using differennt octanes several times to get repeatable results, the difference you experienced could be due to whether or not the tank was filled to the same level in each case.
And maybe the fuel cleaner somehow affected the mileage?
Terry
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