Help your coolant grab more heat with AMSOIL Coolant Boost

I call this the most overlooked “undersold” AMSOIL product in the Sioux Falls store. Benefits all drivers, powersports riders, and equipment. In a nutshell it simplifies and extends the life of overworked powersports cooling systems, enhances cooling system performance of vehicles, restores anti-corrosion properties of existing fluid and improves winter warm-up operation. Many use it in older carbureted engines (cars) which rely on the water to warm the base of the carburetor such as Jeep inline sixes.

Buy today in Sioux Falls at 3020 W. 12th St – Stan Houston’s (Old Kmart)

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Radiator Additive – Dominator Coolant Boost

Racers demand lower engine operating temperatures in order to achieve maximum efficiency and horsepower on the track. Many racers use straight water as a coolant, which invites damaging radiator and water-pump corrosion. AMSOIL DOMINATOR® Coolant Boost (RDCB) provides Sioux Falls racers and motorists with significantly lower engine operating temperatures, quicker warm-up times and advanced corrosion protection.

DOMINATOR Coolant Boost is formulated with proprietary tiered-surfactant technology, providing quick and effective heat transfer inside radiators and cylinder heads and resulting in reduced operating temperatures, more efficient operation, increased horsepower and significantly reduced engine warm-up times in cold weather and before a race. Coolant Boost also contains a robust mixture of corrosion inhibitors that protect the radiator, heater core, water pump, cylinder heads, engine block and intake manifold from the damaging effects of corrosion.

Engine Warm-up Time Reduction Test

Yes, that’s right.  We tested DOMINATOR Coolant 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.

Temperature Reduction Dynamometer Test

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

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 test coolant mixture for one week. Weight loss of less than 1.0 mg is required to pass the 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 immersed 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 metal.

Simulated Cooling System Corrosion Test

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

Recommendations

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

Directions: With engine off and cool, make sure cooling system is filled 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.

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

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

Buy in the Sioux Falls AMSOIL Dealer shop 47073 8th St. Or save time and visit Stan Houston’s on W. 12th St – the old Kmart!

AMSOIL PRODUCT WARRANTY
AMSOIL products are backed by a Limited Liability Warranty. For complete information visit AMSOIL Warranty Information

Customer Reviews and Praise on Dominator Coolant Boost

Always best to hear direct from past customers and AMSOIL users!

Noticed a difference

By  JEFFREY,  a  Verified Buyer  on  April 20, 2025

Definitely noticed a difference in how quickly our cars warm up. I think some people think it will get to full operating temperature in 30 seconds, which is ludacris. My truck get to operating temperature a few minutes quicker no doubt.

By  MATTHEW,  a  Verified Buyer  from  Brantford Ontario Canada  on  February 05, 2025

Great stuff helps the engine build heat faster in the cold especially here in Ontario. My 07 6.0L Heats up a lot faster now and the coolant temp stays cooler when pulling heavy loads and at the same time helps the engine maintain its own heat even when idling in -20 degree Celsius. Great stuff recommend it for sure. I put this in my Transit and this has helped that van out lots also.

Works as advertised

By  Stephen,  a  Verified Buyer  from  Oklahoma  on  July 01, 2024
Really seems to help the cooling systems manage Oklahoma summer heat more efficiently. I add a bottle with every coolant change, and an occasional top off between services.

great product

By  Mike,  a  Verified Buyer  on  May 29, 2024
This works amazing have been using on lawn mower small engines and they have all been running better and cooler.