Quote:
Originally Posted by red-beard
Looking at E10, there SHOULD only be a 3% dropoff in mileage. In 2002, using E10 in California, my Jeep would get around 15 miles per gallon. After emptying the tank driving to Tuscon, the mileage improved to 17 mpg. This is much more than explained by a 3% difference.
IF the mixutre was 10% Ethanol, 10% Water and 80% Gasoline instead of 10% Ethanol and 90% Gasoline, then the mileage difference adds up.
Regular gas ~ 114K Btu/gal
Ethanol Fuel ~ 76K Btu/gal
E10 ~ 111K Btu/gal
E10W10G80 ~99.9K Btu/gal
However, the latent heat of vaporization for water is 970.4 btu/lb. 1/10th of a gallon of gasoline is around .8 lbs. So there is another loss of 776 Btus
E10W10G80 ~99 Btu/gal
17 mpg would drop to 14.7 mpg.
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My cars all have run like shyte for years on the stuff. I remember fuel problems on my car back in the 90's when we started getting it in the winter.
This stuff is just around to keep midwest farmers making money at our expense.
End the Renewable Fuel Standards.
rjp