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Is ethanol free that much of a difference...

Ethanol contains 2/3 the energy per unit volume when compared to normal gasoline. A gallon of ethanol has the same energy as about 2/3 a gallon of gas. So if

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Old 03-10-2011, 11:34 AM   #25 (permalink)
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Ethanol contains 2/3 the energy per unit volume when compared to normal gasoline.
A gallon of ethanol has the same energy as about 2/3 a gallon of gas.
So if you use %10 Ethanol gas then your effectively only getting 90% gas + 10%*2/3 =96.6%

And your MPG will go from for example 25MPG to 25*96.66% = 24.166MPG small but noticeable.

But that's if they don't cheat and give you a little more then just 10% ethanol.
If there's no label "E10" there should be no ethanol in the gas.

Last edited by 2011 Nismo#91; 03-10-2011 at 11:37 AM.
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