Mechanic In A Bottle fixes hard to start or bad running gasoline engines. Most of the time, these problems are just due to bad gas, ethanol, sticky gums, varnish, and carbon deposits that clog your fuel system. Like liquid drain cleaner in plumbing, it cleans the fuel system so your engines work like they are supposed to, saving time and money. For any gas engine. Great for your lawn equipment (mowers, blowers, trimmers), generators, pressure washers, chainsaws, auto, marine, motorcycles, ATVs, you name it. You should always try this first and keep some on hand for emergencies and to avoid unnecessary repair bills. Available in the lawn & garden section at all major retailers nationwide.