This is the real btu factors for fuels.
1 Gal Gasoline (mid grade) = 125,000 Btu's
1 Gal Ethanol = 76,000 Btu's
1 Gal of #2 Fuel Oil = 139,000 Btu's
1 Gal of #4 Fuel Oil = 145,000 Btu's
1 Gal of #6 Fuel Oil = 150,000 Btu's
This site is saying that ethonal has more btu's than gas.
ask anyone that has used it in there eberyday car and you will find out that it looses about 30% fuel milage. I agree It might be great as an alt. fuel for race car, but you also have to consider that a race car want burn 1000's of gal of this stuff in a years time. Although it is not as corrosive than methonal it still has unpredictable burn characteristicts and atracts water really well.