Introducing STA-BIL small engine Pro 16oz. Whether you are just looking to keep a piece of equipment running like new or you have a piece of equipment that needs a simple tune-up this additive is for you. Clean and improve your fuel system with Small Engine Pro, a gasoline/oil additive that helps restore lost engine power and performance, by cleaning out gum and varnish. Keeps internal engine components lubricated and free, providing longevity to internal engine parts. With optimal lubrication and cleaning, this formula effectively quiets noisy engines. Protects against ethanol corrosion inhibitors provide the ultimate protection against the harmful effects of Ethanol. Safe for use in all gas powered small engine equipment including lawn mowers, trimmers, chainsaws, pressure washers, edgers, snow blowers, generators and more.