Ethanol has a lower Stoichiometric value, so you will run richer than pure gas. I run E85 due to 108 Octone, have 13.5 to one compression. I installed an alcohol sensor so I can run any combination and the Stoic value adjusts to the mixture. Modern cars (98 on up) will not be damaged by ethanol, but to convert you need injectors that run without the lubrication gas gives and have a higher output fuel pump as alcohol runs about 30% more volume than gas, higher compression engine takes advantage of the high octane and reduces some of that. My miles per tankful are slightly less than gas, but cost is 4.25 a gallon vs 5.75 for super unleaded for gas. Miles per dollar are less, and I am probably putting out less carbon than an electric car, though I haven't done the math.
Now what will adding 50% more ethanol do the E85 Price?
Don't forget it is also more corrosive to some materials, so if you have a car that isn't meant for Ethanol, just correcting the engine doesn't mean you won't end up with pinhole leaks in fuel lines and a hell of a flammable mess...
Ethanol has a lower Stoichiometric value, so you will run richer than pure gas. I run E85 due to 108 Octone, have 13.5 to one compression. I installed an alcohol sensor so I can run any combination and the Stoic value adjusts to the mixture. Modern cars (98 on up) will not be damaged by ethanol, but to convert you need injectors that run without the lubrication gas gives and have a higher output fuel pump as alcohol runs about 30% more volume than gas, higher compression engine takes advantage of the high octane and reduces some of that. My miles per tankful are slightly less than gas, but cost is 4.25 a gallon vs 5.75 for super unleaded for gas. Miles per dollar are less, and I am probably putting out less carbon than an electric car, though I haven't done the math.
Now what will adding 50% more ethanol do the E85 Price?
Don't forget it is also more corrosive to some materials, so if you have a car that isn't meant for Ethanol, just correcting the engine doesn't mean you won't end up with pinhole leaks in fuel lines and a hell of a flammable mess...