Power Plus Heavy Duty Oil Stabilizer Advanced lubrication with over 40 years of research Eliminates dry starts Keeps oil from breaking down Frees valves - quiets lifters Increases oil pressure, power and fuel mileage Quicker starts in cold weather Power Plus Heavy Duty Oil Stabilizer attacks friction hot spots lowering operating temperatures from destructive levels. Oils treated with Power Plus Heavy Duty Oil Stabilizer literally climb on moving parts keeping all friction areas protected.