Features: Quickly disperses moisture and dissolves gum, varnish, and other fuel residues from the entire fuel system, fuel tank, fuel lines, fuel injectors, valves, rings and pistons with H.E.S.T. Regular use ensures higher compression, fewer repairs, lower operating costs, and increased spark plug and injector life. Available in both consumer and commercial sizes. Catalytic converter and oxygen sensor-safe.
Features: Formulated for vehicles that have not had regular fuel system maintenance. Uses HEST and powerful detergents to maximize one-tank cleaning of intake valves, fuel injectors, and combustion chamber. Dissolves gum, varnish, and carbon deposits in the entire fuel system to help restore peak performance. Improves starting, drivability and gas mileage. Catalytic converter and oxygen sensor-safe.