Put a halt to fuel-related issues with Mercury Quickleen Engine and Fuel System Cleaner. 

Designed to be used throughout the season, Quickleen quickly and thoroughly removes carbon deposits from internal engine components. It also prevents engine knocking and piston seize-up, and can help extend spark plug life. Part of the complete Mercury Fuel Care System, Quickleen is safe for use in all 2‑stroke and 4‑stroke carbureted and fuel‑injected gasoline engines, including cars, trucks, motorcycles, ATVs, snowmobiles, marine engines, lawn mowers, chainsaws, string trimmers and snow blowers. Safe for catalyzed engines. 1 ounce treats 5 gallons of fuel.

• Removes carbon deposits from carburetors, injectors, intake valves, spark plugs, piston crowns and cylinder heads

• Prevents engine knocking and piston seize-up

• Use occasionally throughout the season - just 1 ounce treats 5 gallons of gasoline

• Produced by Mercury Marine to our stringent original equipment manufacturer specifications

• Does not contain fuel stabilizers. Use Mercury Quickare to prevent fuel breakdown and oxidation.

• Mercury oils, lubricants and engine care products are backed by decades of experience in engineering, testing and manufacturing to provide the best protection and performance.