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.

• B-12 chemtool
• 15 oz
• Emulsifies road grime, dirt & grease
• Contains no chlorinated solvents & contains less than 50% voc's by weight
• Use for cleaning engines, small engine parts, lawn mowers, hand tools, machinery, fleet, farm & machine equipment.

What is HEST?

• HEST – “High Energy Solvent Technology,” a Berryman exclusive, incorporates the use of strong solvents, as opposed to weak carriers and diluents such as mineral spirits or kerosene. As a “tip of the cap” to our HEST technology, positive feedback regarding any of our products is affectionately referred to as a HESTimonial.