Dominator® Coolant Boost – Improve Cooling System Performance

Coolant Booster Water Wetter

Dominator® Coolant Boost Provides Effective Heat Transfer and Enhanced Corrosion Protection Formulated with proprietary tiered surfactant technology, providing quick and effective heat transfer inside radiator and cylinder heads, which results in reduced operating temperatures, more efficient operation, increased horsepower and significantly reduced engine warm-up times in cold weather.

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Improve Radiator Performance and Boost the Corrosion properties of the fluid

Enjoy lower engine operating temperatures while achieving maximum efficiency and horsepower on the track or on the road. While the straight water coolant used by many racers opens engines up to damaging radiator and water pump corrosion, the AMSOIL Dominator® Coolant Boost (RDCB) will lower engine operating temperatures, speed warm-up times and improve existing corrosion protection.

Dominator Coolant Boost is formulated with proprietary tiered surfactant technology. Enjoy quick and effective heat transfer. Radiators and cylinder heads measure reduced operating temperatures, becoming more efficient. You will gain horsepower and engine warm-up times are cut in half during cold weather. Coolant Boost is a robust mixture of corrosion inhibitors that protect the radiator, heater core, water pump, heads, block and intake manifold from the effects of corrosion.

Note: I personally use it in older vehicles which I do not know the history of. You don’t know the age of the antifreeze but know that it need’s to remain alkaline. This product will do just that! Also engines where the carburetor is off to the side which rely on water temperatures being elevated for proper efficiency, you need this to achieve faster warm up times.

Engine Warm-up Reduction Test

To test DOMINATOR Radiator Boost’s ability to reduce engine warm-up times, the product was added to an antifreeze/water mixture in a V-8 test engine. The engine was run at idle until it reached a prescribed temperature of either 120ºF or 180ºF. Ambient temperature was maintained at 30ºF to simulate winter conditions.

Engine Warm-up Reduction Test

Temperature Reduction Dynamometer Test

To test temperature-reduction capabilities, controlled engine dynamometer (dyno) tests are performed on a 350 cubic inch Chevy* engine with an aluminum block and cylinder heads. In each phase of testing, the engine is operated at 4,500 rpm until coolant temperature stabilized. As benchmarks for the test, straight water is stabilized at 220˚F and a 50/50 antifreeze/water mixture stabilized at 228˚F.

Cast Aluminum Alloys Corrosion Test chart

An amazing product covering several necessities!! AMSOIL’s best “unknown” product.  Try a bottle today!

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Cast Aluminum Alloys Corrosion Test

The Cast Aluminum Alloys Corrosion Test (ASTM D4340) measures corrosion protection properties in modern automobile and high-performance race engines with aluminum cylinder heads. A cast aluminum puck was heated to 275˚F at 28 PSI and exposed to the coolant mixture for a week. Weight loss of less than 1.0 mg is required to pass the test.

Cast Aluminum Alloys Corrosion Test

Corrosion Test in Glassware

In the Corrosion Test in Glassware (ASTM D1384), six metal coupons constructed of the most common metals in automotive cooling systems were totally soaked in aerated coolant mixtures for 336 hours at 190˚F. Each test was performed three times to determine the average weight change for each metal. The ASTM sets the allowable weight loss maximums for each piece.

rust and corrosion chart coolant

Simulated Service Corrosion Test

In the Simulated Service Corrosion Test (ASTM D2570), six metal coupons are constructed of the most common metals in automotive cooling systems.  They are exposed to ASTM corrosive water designed to simulate hard and corrosive water in degraded coolant for 1,064 hours at 190°F. Coolant is maintained at a temperature and flow rate equivalent to the operating conditions in most passenger cars. Corrosive weight loss during the test will determine the additive’s corrosion protection property. The ASTM sets the maximums for each metal.

Simulated Corrosion Test Radiator Material

Coolant Booster Water WetterRecommendations

Use DOMINATOR® Coolant Boost with racing applications using straight water as coolant and automotive applications using antifreeze mixtures.


With engine off and cool, fill the system with selected coolant. Shake bottle and pour calculated amount of Coolant Boost into radiator. Start engine, turn heat on high and run for 15 minutes.


For straight water applications, add 2 fl. oz. of Coolant Boost per quart of water. In antifreeze mixtures, add 1 fl. oz. of radiator Boost per quart of antifreeze.

Frequency: In applications using Coolant Boost with straight water, drain and re-fill the coolant system and add the Boost once per year.

In applications using Coolant Boost with antifreeze/water mixtures, add Coolant Boost once per year or every 30,000 miles, whichever comes first. Follow coolant manufacturer recommendations for coolant change intervals.

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