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Energy Tomorrow Blog

e8534  renewable-fuel-standard  ethanol  fuel-economy  fuel-demand  consumers  epa34 

Mark Green

Mark Green
Posted July 18, 2014

Check out our new cartoon, which pokes fun at what actually is pretty big drawback with E85, the fuel containing up to 85 percent ethanol that some think is key to salvaging the flawed Renewable Fuel Standard (RFS).   

Sure, it’s a cartoon. But it helps illustrate a real dilemma with E85 – its significant fuel economy disadvantage compared to the E10 fuel that’s the staple of the U.S. fuel supply.

Basically, because ethanol is less energy-dense than gasoline, fuel that’s up to 85 percent ethanol gets fewer miles per gallon than fuel that’s only 10 percent ethanol. Here’s a sample search from the Energy Department’s fuel economy comparison tool, which shows this in specific vehicle types – fewer mpg with E85, higher average annual fuel costs. 

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crude-oil  diesel  distribution  domestic-energy  fuel  gasoline  oil-demand  refineries  ulsd  diesel-vehicles  fuel-demand  ultra-low-sulfer-diesel 

Jane Van Ryan

Jane Van Ryan
Posted December 17, 2010

"Stronger fuel demand tells us a recovery is underway." Those are the words of API's Chief Economist John Felmy today, describing the good news in API's Monthly Statistical Report for November. The report shows that U.S. petroleum deliveries (a measure of demand) climbed 6.5 percent last month over November 2009. The increase was the largest year-to-year increase for any month in 2010. 

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