Biofuels are redefining the way we think about our cars and our environment and with higher ethanol-blended fuel more frequently becoming an option at the pump, we think it’s time for Merriam-Webster to update the dictionary and recognize E15 as a word!

We know what you’re thinking: how can we get a word like E15 added to the dictionary?

Well, just for perspective – here are a few words that have been added to Merriam-Webster’s dictionary so far this year:

  • Woo-woo
  • Word-salad
  • Bingewatch
  • Humblebrag
  • Weaksauce
  • Froyo
  • Face palm
  • IPA
  • Photobomb
  • And so many more

If these words can earn a spot in the dictionary, E15 certainly deserves one!

And making the request is easier than you think. You can help make it happen by signing our petition to submit E15 as an addition here, and by posting to Facebook and Twitter to make sure Merriam-Webster knows we mean business.

E15 is changing our air, improving our engines and driving a better future. It’s time to define it.

Let’s make a difference and officially add E15 to Merriam-Webster!

Latest Updates see all

get email updates on our work and how you can help

  • This field is for validation purposes and should be left unchanged.


Today in Michigan, with holiday drivers facing record-high gas prices, the state Senate Ag Committee approved legislation to expand access to lower-cost, lower-emissions biofuel blends for drivers in Michigan.…

via @GrowthEnergy

New → Canada has released its finalized Clean Fuel Regulations, and they are a win for the Canadian consumer and low-carbon biofuels.…

via @GrowthEnergy

@FoxNews @sheetz E15 is available this summer thanks to @POTUS recent emergency waiver. Year-round E15 should be made permanent so these savings can be accessed by American drivers all year long.

via @GrowthEnergy

As seen on @FoxNews ⛽️ @sheetz is selling E15/Unleaded88 for $3.99/per gallon all weekend long to promote renewable fuel options and reflect the cost savings of E15 at stations across the country.

via @GrowthEnergy