[Allch Chcar]

This seems to be another study trying to change how we look at things. This isn't the first time I've heard efficiency of energy used instead of efficiency of volume. Obviously a fuel with a larger energy density is desirable for consumers but doesn't necessarily mean it is a better fuel overall. Diesel is nice because it is high density fuel used in a more efficient engine. But Ethanol seems to be the lesser of the three because of energy density but is actually capable of Diesel levels of efficiency with Gasoline levels of power. I'd like to see some more studies like this. Particularly while the EPA is mulling a idea for E30 as an alternative to Premium Gasoline.