DO NOT use E-15 Fuels in your Motorcycle, ATV, Watercraft,   Snowmobile or Generator (I personally wouldn't use it in anything I own)

What is E-15??

E15 fuel, a mixture of 85% gasoline and 15% ethanol, has been forced on us by the EPA. You MUST NOT use this fuel in any Yamaha. Doing so will cause catastrophic engine failure and possible severe injury to you, the operator. It will void your warranty and be VERY costly to repair the consequences.

The Environmental Protection Agency (EPA) has implemented Ground Level Ozone Air Quality standards. Part of the EPA's strategy to meet these standards requires the addition of fuel oxygenates to gasoline to improve the internal combustion process. Ethanol or MTBE (Methyl Tertiary Butyl Ether) are approved fuel oxygenates.

Please also refer to my E-10 article HERE

Said Representative Jim Sensenbrenner (R-WI) "The EPA's decision to allow E15 into the marketplace will impact every American who owns a car, lawnmower or boat". Automakers insist that using E15 will void warranties, lower fuel efficiency and cause premature engine failure. In off-road engines, the effects can even be dangerous for users. There are serious concerns that the EPA used only one Department of Energy test and rushed E15's introduction into the marketplace," Sensenbrenner said. "This test was limited in scope and ignored a plethora of evidence – albeit inconvenient evidence for the EPA – that shows E15 gasoline has a negative effect on engines."

The new E15 gasoline formulation may appear at a fueling station near you and you need to be careful where you use this new fuel blend. That is because the EPA, in October 2010, approved E15 for use in model year 2007 and newer light duty vehicles (cars, light-duty trucks, and medium-duty passenger vehicles). In January 2011, it added model year 2001-2006 light duty vehicles to the approved list.

Riders should pay attention to this list because no motorcycles or ATVs are currently on the EPA approved list- and won't be.

The American Motorcyclist Association (AMA) said "[it] is concerned about E15 because it burns hotter than gasoline that contains a lesser amount of ethanol. In engines not designed to dissipate that extra heat, damage in the form of premature wear or catastrophic failure can result. Although this is a concern in all motorcycles, it's particularly problematic for air-cooled engines found in many bikes. Moreover, use of E15 will void the manufacturer warranty".

On February 7, 2012, the House Committee on Science, Space and Technology will vote on H.R. 3199, introduced by Representative Jim Sensenbrenner (R-WI) on October 14, 2011. This bill would require the U.S. Environmental Protection Agency (EPA) to seek independent scientific analysis on the effects of 15 percent ethanol blend (E15) gasoline.

The AMA urges you to write your Representative today and ask them to support H.R. 748 and H.R. 3199.
For a detailed analysis of this issue, including access to related documents, please go to the AMA website at

Check the label on the pump before you put fuel into your motorsport products.

 Ride Safe and Smart!

Dr Jay