Families are gassing up the car to head out of town, fueling up the boat for a weekend at the lake, and getting out the mower to tackle the lawn. But do you know the impact ethanol has on all of these activities? According to the Department of Energy, ethanol contains about one-third less energy than gasoline, meaning the more ethanol in your fuel, the less mileage a tank of gas will get you. Plus, ethanol has been found to damage or corrode many small engines found in power equipment, motorcycles, or boats. The result?