AAA: E-15 gas could be harmful to cars

The new E-15 gasoline blend may not be safe for your car.

E-15 contains up to 15 percent ethanol.

AAA said sustained used could damage cars by accelerating engine wear and that it could void your vehicle's warranty.

The EPA approved E-15 for sale in June.

Automakers approved it for use in less than five percent of cars.

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