Quote:
Originally Posted by 2000mc
there are multiple older threads about this...
where do you get 10% difference in fuel economy? if the fuel is 10% alcohol you dont lose 10%, the alcohol still contributes. i believe 10% alcohol fuel has about 3% less BTU, but the idea that it correlates directly to mileage has been debated. some even claim better mileage with 10% alcohol.
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10% difference = real world results. Not just my results. I'm pretty sure I mentioned nothing about linearity between the percent of alcohol and fuel mileage gain. Sorry if my first post implied this.
Any time you add methanol or ethanol, you are reducing BTUs even comparing same octane fuels.