Wisconsin will see gasoline with 15% ethanol at stations this summer. Even though pumps will carry a label that says the fuel isn't meant for outdoor power equipment, some are concerned that the E15 will end up in small engines and damage them. Engine Products Group has filed a petition with the Supreme Court to stop E15 at the pumps. "It's not in the interest of consumers to discover, after the fact, that engine performance problems are occurring because a new fuel was rushed into the marketplace," said Kris Kiser, CEO and president of OPEI. Briggs & Stratton and other equipment manufacturers are already warning their customers about the dangers of E15 fuel.