Specific gravity of gasoline is .739 at 60 degrees
Specfic gravity of E-85 is .788 at 60 degrees.
So, they will not seperate as the rumor is.
Ethanol must be 200 proof to be sold for use with gasoline.
It is poisoned with some gas when it leaves the plant with
the tranport truck. So, dont hijack a load thinking you will get
some hot firewater...........
Go to wikipedia and type in ethanol fuel for a lot more info.
The engineer people that i have talked to about this say you have to
look at btu per gallon to understand the mileage thing. more btu per gallon
equals more mileage
BTU PER GALLON
natural gas 75,000
e-100 ethanol 76,000
e-85 ethanol 81,800
e-10 ethanol 111,836
regular gasoline 114,000
winter grade gas 112,500
#2 diesel fuel 140,000
Winter grade is what we have to have in the north country to be able to
start vehicles in our weahter.....
I did not look up hydrogen for btu but, i do know that it is way, way below
natural gas......
In my automotive days i never seen an e-10 or e-85 damage an enigne
that was designed to run on those fuels. I have heard the 2-cycle people
talk a lot about fuel related damage but do not know how much is really fact.
The local car racers here all use e-85 fuel because it is cheaper than racing fuel. Also has a high octane rating so , enignes do not ping, spark knock, and cause engine damage. They have to run a lot bigger carb jets to compensate for the less btu.........
In conclusion,,,,,,, you will get worse mileage with e-fuels, but, cleaner air.
Is it worth using all that corn to make it???? that is for another discussion....

now, back to some woodworking