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Re: ethanol and fuel mileage
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Posted by Bus Driver on October 27, 2003 at 05:47:05 from (65.165.154.46):
In Reply to: ethanol and fuel mileage posted by Terry on October 26, 2003 at 08:35:08:
Today's computer controlled fuel injection systems compensate for the difference in fuel-air ratios of the blend and pure gasoline. It is an inescapable fact that ethanol has lower BTU per gallon than does gasoline. That of itself means fewer miles per gallon. If the computer can advance the timing and the engine has spark knock detectors, most of the mileage difference might be eliminated by the higher octane of the ethanol. Carbureted engines are much more likely to have some problems with the blend. Adjustable high and low speed jets can accomodate the 10% blend, but re-adjustment would be necessary for best results.
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