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The_Logans's avatar
The_Logans
Explorer
Jul 07, 2014

Ethanol

Well, just got back from Florida, and discovered some interesting thins about ethanol in the fuel. I ran through 3 states where they were selling ethanol free fuel, and gas seemed to be cheaper without ethanol, and beter yet, I got 2.2 MPG increase in my milage without ethanol.

Good grief, why do they put that stuff in the fuel if it costs more, and kills your milage? :@
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  • tpi's avatar
    tpi
    Explorer
    Jul 07, 2014
    I'm not all that fond of the ethanol in the fuel. It does serve as an octane booster-at least one way to boost octane.

    But... ethanol contains about 30 percent less energy per gallon than gasoline. The fuel generally contains 10% ethanol. So the total energy content of the ethanol treated gasoline is about 3% less than pure gasoline. You report a 22% plus loss of fuel economy-which is far beyond the scope of the ethanol. I suspect headwinds/tailwinds are a big factor here.

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