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E10 & Other Blends
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E10 is the term for fuel that is blended with 10 percent ethanol and 90 percent unleaded gasoline. All unleaded gasoline in Missouri is an E10 blend when the price of ethanol is less than or equal to gasoline. Possible exceptions include premium blends, aviation and boating fuel.

 

  • All motor vehicles manufactured since the 1970s can run on E10,
  • Does not require engine modifications,
  • Significantly lowers carbon monoxide levels,
  • E10 is available at many of your local gas pumps,
  • Ethanol serves as an oxygenate and antifreeze component when blended with your gasoline,
  • E10 has been approved for use by all small gas engine manufacturers as well as marine engine manufacturers.

 

 

Higher Ethanol Blends E20, E30, E40

 

Each blend is indicated by the percentage of ethanol it contains (i.e. E30 is comprised of 30 percent ethanol and 70 percent gasoline). These fuels are approved for use in Flex Fuel Vehicles (FFVs) only as they contain a higher blend of ethanol than allowed by the government for a legacy vehicle.  These new ethanol blends offers consumers with FFV’s another choice at the pump. Early studies indicate these new ethanol blends will provide economic and operational benefits to consumers. 

 

The Missouri Department of Agriculture (MDA), Division of Weights and Measures (DWM) recently approved a blender pump pilot program for Missouri. This program will allow blender pumps to be established on a trial basis strategically across the state. This will allow DWM to monitor the accuracy of these blender pumps and establish accurate measuring procedures.

 

Other states such as South Dakota and Kansas have approved the use of blender pumps. Many pumps are already in place and have increased the sales of domestically produced fuel. The establishment of these types of pumps is another key step in securing our energy independence and will provide additional support for Missouri’s ethanol production facilities. Additionally, these higher ethanol blends provide positive impacts to Missouri’s environment and air quality.

 

For more information on higher ethanol blends, click here.

 

If you have any ethanol related questions, please contact This e-mail address is being protected from spam bots, you need JavaScript enabled to view it , Missouri Corn associate director of ethanol blends.

 
 
 
     
 
 
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