AURORA, Ill., Nov. 30, 2012 /PRNewswire/ -- A recent survey by AAA finds a strong likelihood of consumer confusion and the potential for voided warranties and vehicle damage as a result of the Environmental Protection Agency's (EPA) recent approval of E15 gasoline. An overwhelming 95 percent of consumers surveyed have not heard of E15, a newly approved gasoline blend that contains 15 percent ethanol, and nearly half (44 percent) said they did not know if the fuel was approved for use in their primary vehicle. With little consumer knowledge about E15 and less than five percent of cars on the road approved by automakers to use the fuel, AAA is urging regulators and the industry to stop the sale of E15 until motorists are better protected. (Logo: http://photos.prnewswire.com/prnh/20100506/AAACHILOGO) Only about 12 million out of the more than 240 million light-duty vehicles on the roads today are approved by manufacturers to use E15 gasoline, based on a survey conducted by AAA of auto manufacturers. AAA automotive engineering experts also have reviewed the available research and believe that sustained use of E15 in both newer and older vehicles could result in significant problems such as accelerated engine wear and failure, fuel-system damage and false "check engine" lights for any vehicle not approved by its manufacturer to use E15. AAA supports the development and use of alternative fuels. More than 95 percent of the gasoline sold in the United States contains up to 10 percent ethanol. Lower ethanol blends should remain available to consumers while the challenges with E15 are addressed. "It is clear that millions of Americans are unfamiliar with E15, which means there is a strong possibility that many motorists may improperly fill up using this gasoline and damage their vehicle," said Kevin Bakewell, AAA Chief Public Affairs Officer, The Auto Club Group. "Bringing E15 to the market without adequate safeguards does not responsibly meet the needs of consumers." Unsuspecting consumers using E15 could end up with engine problems that might not be covered by their vehicles' warranties. Five manufacturers (BMW, Chrysler, Nissan, Toyota and Volkswagen) are on record saying their warranties will not cover fuel-related claims caused by the use of E15. Seven additional automakers (Ford, Honda, Hyundai, Kia, Mazda, Mercedes-Benz and Volvo) have stated that the use of E15 does not comply with the fuel requirements specified in their owner's manuals and may void warranty coverage.