Modern cars are designed to get around just fine with gasoline containing ethanol in their tanks, but not all gasoline that you buy at the corner gas station is healthy for other items that you own that use gas. Think outdoor power equipment like push mowers, string trimmers, and chainsaws. Cars made in 2006 and afterwards can take fuel that’s up to 15% ethanol, but that mixture can be disastrous for small gas-powered appliances. [More]