Great Wall Motor Introduces 2.0L Diesel Engine
Toyota to Use Bio-PET “Ecological Plastic” in Vehicle Interiors

EPA Grants E15 Waiver for MY 2007 and Newer Light Duty Vehicles

The US Environmental Protection Agency (EPA) has granted a waiver for fuel containing up to 15% ethanol (E15) for model year 2007 and newer cars and light trucks. Currently, there is an overall 10 volume percent (vol%) ethanol blend limit (the “blend wall”) in gasoline. The partial waiver was in response to a March 2009 application submitted by Growth Energy under the Clean Air Act. (Earlier post.)

A decision on the use of E15 in model year 2001 to 2006 vehicles will be made after EPA receives the results of additional DOE testing, which is expected to be completed in November. However, no waiver is being granted this year for E15 use in model year 2000 and older cars and light trucks—or in any motorcycles, heavy-duty vehicles, or non-road engines—because currently there is not testing data to support such a waiver.

There are two types of conditions for implementing the partial waiver decision, those for mitigating the potential for misfueling of E15 in all vehicles, engines and equipment for which E15 is not approved, and those addressing fuel and ethanol quality. All conditions must be met prior to the introduction of E15 into commerce.

Misfueling mitigation conditions include:

  • Labels must be placed on E15 retail dispensers indicating that E15 use is only for MY2007 and newer vehicles.
  • Product Transfer Documents (PTDs) must accompany all transfers of fuels for E15 use.
  • Parties involved in manufacture of E15 must participate in a survey of compliance at fuel retail dispensing facilities to ensure proper labeling of dispensers.
  • Parties must submit plan addressing conditions to EPA for approval.

Fuel quality conditions include:

  • Ethanol used for E15 must meet ASTM International D4806-10.
  • The Reid Vapor Pressure for E15 is limited to 9.0 psi during the summertime.

This partial waiver represents only the first of a number of actions that are needed from federal, state and industry towards commercialization of E15 gasoline blends. These include but are not limited to submission of a complete E15 fuels registration application by industry, and changes to some states’ laws to allow for the use of E15.

Additionally, several steps are being taken to help consumers easily identify the correct fuel for their vehicles and equipment. First, EPA is proposing E15 pump labeling requirements, including a requirement that the fuel industry specify the ethanol content of gasoline sold to retailers. There would also be a quarterly survey of retail stations to help ensure their gas pumps are properly labeled.



I don't see retailers wanting to sell E15 when it's only good for 2007 and newer cars.


We are already taking a 3% hit on our mileage with E10, E15 will drop my mileage by 4.5% since my car isn't flexfuel capable. Even if you do have a flexfuel vehicle, does E15 give the same mileage as normal unleaded sans ethanol?


Ziv, it's mostly about the energy content of the fuel rather than whether the car is FF or not. Ethanol has a third less energy per unit volume than petrol.


We hear this unit energy comparison a lot from alcohol naysayers. Even at lower energy content, burning domestic ethanol yields 60% less GHGs (if you're green), keeps dollars local AND provides JOBS.

As for energy content, Brazilian ethanol will power the IZOD IndySeries of race cars including the Indy 500 in 2010. A perfectly good SUSTAINABLE fuel with tweaking.

The comments to this entry are closed.