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Its been 10% here for years for all grades.
The last time I actually bought a tank of mid grade without ethanol my mileage went up 10%.
It would be nice to see a direct comparison of the mileage of the 3 grades available with 0-5-10% ethanol content.
My single example is not enough for any definitive claim of improvement in non ethanol fuel, but it would seem like the much lower energy content of ethanol would have a significant negative effect.
EPA for a Nissan Titan was 13 on gas and 9 on E85. That follows the btu energy content of the two fuels fairly closely.
I would like to do a comparison in one of my cars but the closest no ethanol gas is in DC (I think) and I am not driving 180 miles to that cesspool for a tank of gas.
regards
Mech
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