 But some gas pumps are changing. Higher ethanol gas blends like E15, E30, and E85 may be available at a local station, and they may be cheaper. But it's harmful and illegal to use in outdoor power equipment. And what you put in your car may no longer be safe for other engines. When getting gas, look before you pump. Price is no longer the way to choose your fuel. You have to choose the right fuel, because not having the right fuel for the right product can damage or destroy the equipment.