Highly concentrated YamaLube Ring Free PLUS is a proven engine deposit cleaning package. When used as directed, this top-quality deposit-control sytem removes deposits from fuel injectors, carburetors, intake valves, intake ports, and combustion chambers. These harmful deposits, often the result of poor quality gasoline, may cause knocking/pinging, power loss, hesitation, shortened spark plug life, piston ring sticking, and even expensive engine damage. This special fomulation also helps protect electronic parts and fitting in the fuel system against the corrosive effects of sulfur compounds in ethanol (E10) fuels. May be used with Yamalube Fuel Stabalizer & Conditioner PLUS. Improves power and efficiency in two and four stroke engines. Use this product on a continuous basis to provide maximum protection against deposits. 1 oz Ring Free PLUS to every 10 gallons of fresh gasoline.

Add to fuel in either SHOCK TREATMENT for oil build up or CONSTANT TREATMENT to maintain protection from harmful deposit build up. After SHOCK TREATMENT it is recommended to change oil in 4 stroke engines. Older heavily deposited engines may require a second shock treatment. SHOCK TREATMENT: 2 oz./gal. CONSTANT TREATMENT: 1 oz./10 gals. Minimum SHOCK TREATMENT per engine: 3.3L to 1.7L engines - 64 treated gallons 1.6L to 700cc - 24 treated gallons 699cc and below - 12 treated gallons