"Dave" wrote in message
...
On Thu, 11 May 2006 16:41:24 GMT, "Maxprop" said:

The numbers I've seen indicate 1.5 gallons of E85 (the highest useable
concentration of EToH) roughly equal one gallon of gasoline.

I think that's a slightly different issue. As I understand it, what you're
saying is that it takes 1.5 gallons of ethanol to provide the same effective
energy output as 1 gallon of gasoline--strictly an energy output issue. The
numbers I was talking about related to inputs to and output of the ethanol
itself, and suggested that one used about 2/3 of a gallon of petroleum
products to produce 1 gallon of ethanol.

OK, but then I must burn 1.5 gallons (50% more) Ethanol to go the same miles as
a gollon of gas so 2/3 x 1.5 = 1, ie it takes the energy equivalent of 1 gallon
of gas to get the same energy as one gallon of gas out of Ethanol. Kind of like
buying a bushel of seed corn then working one's ass off to plant then harvest it
and only get one bushel of corn back.