This is especially the case in performance and racing engines, which require as much heat transfer from coolant as possible. Without it, cylinder head temperatures increase and cause detonation and engine damage unless spark timing is retarded, further reducing horsepower.

And vehicles built prior to the 1950's also have increased heat-transfer demand of coolant. These cars were originally built to run with a mixture of water and alcohol and therefore are prone to overheating if today's viscous blends of ethylene glycol are substituted as coolant. (Note: Use of alcohol in coolant was subsequently discontinued due to issues related to evaporative losses and flammability.) Even in modern passenger cars, fuel's limited octane causes increases in cylinder head temperatures. Once again, it is up to the coolant to remove this excess heat. Unless it does so effectively, computerized knock sensors will automatically retard the timing to prevent detonation, causing horsepower loss.

Believe it or not, glycol antifreeze is NOT the best coolant for heat transfer!

Straight water actually conducts 140% more heat than glycol, and 60% more heat than a 50/50 mixture of water and glycol antifreeze. Therefore, running with a standard 50/50 mix could be causing overheating and detonation in your car's engine. But using straight water also presents serious problems, because water does not contain any corrosion protection.

HyperKühl High Performance SuperCoolant increases coolant's ability to wet metal surfaces by reducing its surface tension. This allows coolant to conduct heat more effectively at critical liquid-to-metal interfaces inside cylinder heads and the radiator. The corresponding reduction in cylinder head temperature allows timing to be safely advanced without the threat of detonation, thereby increasing horsepower. HyperKühl provides temperature reduction of approximately 5-7 degrees when run with coolant consisting of a 50/50 mix, and up to twenty degrees when used with straight water coolant.

And importantly, HyperKühl has the distinct advantage of containing premium No-Rosion ingredients, providing complete 5 year / 30,000 mile protection from corrosion and electrolysis even in water-only cooling applications. As such, HyperKühl is the ONLY 2-in-1 complete corrosion inhibitor and wetting agent on the market today.

What Makes HyperKühl the Best?

Many other temperature-reducing coolant products cause significantly increased rates of aluminum pitting and erosion. HyperKühl contains a unique blend of molybdate, mercaptobenzothiazole, and tolytrizole which allows it to provide the utmost in protection of expensive aluminum components and radiators. In addition, it contains polymer dispersants which prevent hardness and contaminants in water from forming effeciency-robbing scales and cylinder liner cavitation and erosion using advanced nitrate technology.

One pint treats cooling systems of 12-20 quarts. Use with straight water for maximum temperature reduction. (Note: It is recommended that a minimum of 15% antifreeze be maintained in cooling systems of street-driven vehicles. HyperKühl does NOT provide freeze protection.)