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Aug 23 2012

Most of us were probably oblivious to what we were putting into our fuel tanks the first time we filled up on E10 Gasohol. In most circumstances, there wasn’t much cause for alarm. The government is now giving the green light to E15, a decision some feel might have been made on inconclusive data. This article cuts through the debate, and tells you what consumers should know about E15 as of right now.

 

Coming Soon to a Gas Station Near You: E15

 Ethanol has been put under a fair amount of scrutiny since it was introduced into our national fuel supply.  However, time has quelled most US gasoline consumers’ trepidations about filling their beloved automobiles with the standard E10 fuel. E10 is a blend of 10% ethanol and 90% gasoline, otherwise known as gasohol. Recently, The Environmental Protection Agency (EPA) has ramped up efforts to get E15, a blend of 15% ethanol and 85% gasoline, to the pump citing that the blend poses no danger to 2001 through 2006 vehicles. Since 2007 regulations have required that all new vehicles are manufactured such that they are safe to use with the proposed E15 fuel.

But the Coordinating Research Council begs to differ. After a two-year durability study, using different blends of ethanol and gasoline in different engines, concludes that the E15 blend might not be as benevolent as proponents suggest. The Department of Energy was quick to release their rebuttal of the findings and thus the whole ethanol debate seems to have been reignited.  Here we go again.

When debates get heated and politically charged, it’s easy to get disenfranchised by the finger pointing that goes on between various industries, government agencies, lobbies and advocacy groups. It’s usually the end-user of a product that’s left to plod through much of the fear mongering in order to get to the facts. In that light, here are 12 things that you should know about E15:

 

  • 95% of all gasoline currently sold in the US is blended with some percentage of alcohol.
  • Over 40% of the corn grown in the U.S. is turned into ethanol.
  • Depending on where you live and the season, you may have already used something close to E15. E10 can contain up to 13% ethanol.
  • Fuel economy tends to decrease as you raise the concentration of ethanol in fuel.
  • The EPA is not forcing anyone to use E15; they are only approving waivers for its storage and production/blending.
  • E15 is not replacing E10 yet and is not readily available.  Most gas stations do not have the infrastructure in place to support E15 at this time.
  • Light duty vehicles model year 2007 and newer, along with Flex Fuel Vehicles (FFVs) have been engineered to safely use E15.
  • E15 should not be used in vehicles model year 2000 and earlier (unless they are FFV's).
  • E15 is not approved for heavy-duty vehicles, boats, motorcycles, off-road vehicles, or other small engines.  It is presently intended for light duty vehicles only.
  • E15 nozzles will not differ from E10 nozzles. So as E15 becomes gradually available (late 2012-2014), motorists will likely have some choice whether to use E15 in their car or not. 
  • Based on durability concerns presented in the study listed above, motorists with non-FFV vehicles between the model years of 2001-2006 might want to exercise caution before switching to E15.  
  • Ethanol-related durability problems are often attributed to its miscible properties, allowing corrosion due to water retention.

 

Please comment below and share your thoughts on E15. Is the government moving too fast to increase the blend ratio? Should we be using corn to make ethanol to supplement our fossil fuel consumption?   Are the environmental and commercial effects of blending ethanol with gas positive and significant?

 



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