Depends on the feedstock and how you refine it. With feedstock getting heavier and sourer you have to crack more and more of it into gasoline/diesel fractions. More is cracked into gasoline than diesel -- that's demand driven. What's this have to do with a push for biofuels?

I don't like this strategy by the right wing to bundle together biodiesel and ethanol as "biofuels". It lends some kind of environmental legitimacy to ethanol which it absolutely does not deserve.

Loophole fuels Detroit's ethanol fixation

excerpt:
Manipulating CAFE rules

Corporate Average Fuel Economy (CAFE) rules set minimum mileage standards across all vehicle models. For cars, the average is 27.5 miles per gallon. For light trucks (sport utility vehicles, pickups, and minivans), it's 21.6 mpg.

But under pressure from $3-a-gallon gas prices, the Bush administration is recommending that trucks produce an average of 24.1 mpg by 2012. The new rules will be a daunting challenge for automakers already struggling to meet the current standard.

An alternate fuel-friendly government, however, has created an ethanol loophole for carmakers. It lets manufacturers pump up their fuel economy ratings, particularly in the most popular vehicles that tend to get the least gas mileage, light trucks.

Running on gasoline, an SUV like the Chevy Tahoe achieves 20.1 mpg under CAFE's test. Put E85 in it instead and the fuel economy plummets to 14.6 mpg.

But for the purposes of CAFE -- and here's where we fall down the rabbit hole, Alice -- the government starts massaging the numbers. It only counts the 15 percent of E85 that is gasoline in its fuel economy rating, increasing the vehicle's mileage figure a whopping seven-fold to 97.3 mpg.

------

So, on average, manufacturers are getting an average 12 mpg boost on their CAFE numbers for a given vehicle, and the average combined gas-only fuel economy of MY2007 E85 vehicles is only 17 mpg. The preferential CAFE treatment boosts that to 29 mpg.

Here is the relevant section of the US Code for this.

Hey, gotta take ethanol seriously. Produced from current WASTE, I mean overproduction of corn, very quickly it will move to cellulosic ethanol from WASTE corn stalks and another agricultural WASTES. At the same location, on mainly same distilleries. And as being WASTE derived fuel, it is assured to be DOMESTIC.

Ford Shifts Its Focus Away From Hybrid Vehicles

By MICHELINE MAYNARD and JEREMY W. PETERS

DETROIT, June 29 — The Ford Motor Company, which has prided itself as the leading innovator of hybrid vehicles among American car companies, said today that it would not meet a previously announced goal to build 250,000 gas-electric vehicles by the end of the decade.

Instead, Ford said it would place a greater emphasis on developing vehicles that can run on fuels other than gasoline, like E85, a mix of ethanol and gasoline.

Hybrid vehicles will still be in the company's lineup, but they are more likely to be cars than trucks or sport utility vehicles, officials at the company said.

The move represents an increasing focus among American automakers on ethanol, a fuel derived from grain alcohol, as a gasoline substitute.

Mark, as far as I understand from my research on the subject, diesel is actually more efficient to refine than gasoline, meaning diesel has an even greater total well-to-wheels efficienty compared to gasoline than simply comparing the pump-to-wheels or vehicle operation efficiency using the two petroleum-based fuels.

So, with clean (i.e., ultra-low sulfur) diesel on the way, we could be making large and real fuel economy gains, as Europeans have done, by increasing the share of diesel vehicles on the road.

Plug-in hybrids (diesel or gasoline) would make very significant improvements in fuel economy while shifting much of our transportation energy to electricity - which diversifies the potential feedstocks and allows us to more readily utilize domestic energy supplies for transportation.

Ethanol from corn can contribute in a minor way, while ethanol from cellulosic biomass and agricultural, forestry and urban wood wastes can contribute a significant quantity of our energy needs.

We have lots of options ... what we lack is commitment and leadership.

we have plenty of both commitment and leadership.

it's just that the commitments and leadership are in the wrong direction.

the people making decisions and giving advice cannot be trusted because of the legalised bribing system in place in the US gov't

and the rule of the ignorant self-centered masses described as one of the pit-falls of representative democracy will only lead to senators looking for solutions that benefit the people they represent.

any member of a gov't has the responsibility to seek what is best for humankind, not just the people that elected them. and voters have the responsibility to elect people who will find the best solutions instead of voting for someone who shares the voters opinions.

The reason for cafe is not to conserve fuel its to reduce forien oil use. As such yes a e85 car is effectively to those that make the standards a car that uses far less oil.

And in fact it doesnt realy matter what milage a vihicle gets if they do in fact manage to increase ethanol production to cover the needs. And yes ethanol production is booming so... who knows.

What are you smoking? The oil companies make 9.5% profit.. the fuel tax is something like 40-45 cents a gallon.. you do the math.

Exxon paid 3 billion in taxes in 1999 and 23 billion in 2005. What would the federal deficit be without these high prices ???

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