Edited sentence: E85 contains approximately 27% less energy per gallon than conventional gasoline, although ethanol typically burns more efficiently.E85 has traditionally been similar in cost to gasoline, but with the large oil price rises of 2005 it has become common to see E85 sold for as much as $0.70 less per gallon than gasoline, making it highly attractive to the small but growing number of motorists with cars capable of burning it.This results in a fuel economy loss of less than the energy content would imply