Restores efficiency and helps reduce gasoline consumption by quickly dissolving gum, varnish and carbon deposits from carburetor throats, chokes, throttle plates and PVC valves. Product Features:Helps free stuck heat risers and throttle linkages. Instantly dissolves deposits to restore maximum powerSAFE FOR OXYGEN SENSORS AND CATALYTIC CONVERTERSContains no chlorinated solvents50 State Compliant