Quicksilver 12 oz Quickare Fuel Treatment is for use in all 2â and 4âcycle carbureted and fuelâinjected gasoline engines including cars, trucks, motorcycles, ATVs, snowmobiles, marine engines, lawn mowers, chain saws, string trimmers and snow blowers. Safe for catalyzed engines. It can help maximize engine performance with all grades of gasoline. It will help control corrosion, gum and varnish build-up and phase separation associated with ethanol blended gasoline while cleaning existing varnish and gum deposits in fuel lines, tanks, carburetors, injectors, intake valves and spark plugs. The Quicksilver brand is the leader in delivering uncompromising engine oils, parts and accessories to the marine industry for over 65 years. Quicksilver is the premier supplier of Mercury Marine original equipment replacement engine parts, oils, and accessories, but also works to serve all original equipment brands in the marine and powersports industries. It has earned a loyal following by providing the highest quality products that are tested through some of the most rigorous environments and testing procedures. No aftermarket company comes close to the level of research and design as Quicksilver; buying Quicksilver is buying performance, protection and peace of mind. Quicksilver 12 oz Quickare Fuel Treatment - Oil And Lubricants at Academy Sports