Mercury Marine Quickleen Engine & Fuel System Cleaner

The Mercury Marine Quickleen Engine & Fuel System Cleaner is a powerful formula designed to remove carbon deposits from critical engine components and restore lost performance. Ideal for gasoline‑powered Mercury, Mariner, and MerCruiser engines, it helps maintain smooth operation, improve efficiency, and prevent carbon‑related issues when used regularly throughout the season.

Features

• Removes carbon deposits from injectors, carburetors, intake valves, spark plugs, piston crowns, and cylinder heads
• Helps prevent engine knocking and piston seizure
• Treats fuel efficiently — 1 oz cleans 5 gallons of gasoline
• Built to Mercury Marine’s OEM‑level standards
• Contains no fuel stabilizers (pair with Mercury Quickare for fuel stabilization)

Product availability varies between locations, and some products are only available online. Please contact your nearest Martin Motor Sports here for availability.