92-8M0047931 - Using Mercury Quickleen before storage will be a helpful "shock" to your Mercury, Mariner, or Force Outboard. When used as directed, this top quality deposit-control system removes deposits from fuel injectors, carburetors, intake valves, intake ports, and combustion chambers. Your outboard will be ready to rock after storage with improved power and efficiency. For proper use, add 1 ounce of product per 5 gallons of gasoline.