Dominator® Coolant Boost RDCB

February 20, 2021

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 racers and motorists with significantly lower engine operating temperatures, quicker warm-up times and advanced corrosion protection.

Download Data Bulletin G2785 For Complete Product Information

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.

Amsoil Dominator® Coolant Boost RDCB Buy Now/Pricing Information

Engine Warm-up Reduction Test

To test 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 120°F or 180°F. Ambient temperature was maintained at 30°F to simulate winter conditions.

Engine Warm-Up Time Reduction

Warm-up with 50/50 Antifreeze/Water Only

Warm-up with Coolant Boost Added

30°F to 120°F

6.3 Min

3.2 Min

30°F to 180°F

11.3 Min

5.3 Min


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.

Temperature Reduction (in degrees Fahrenheit)

Mixed with 50/50 Antifreeze/Water

Mixed with Straight Water

Dominator Coolant Boost

8°F reduction

25°F reduction


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.

ASTM D4340

Weight Loss in mg (1.00 max)

RDCB - In Straight Water

0.06

Water Only

3.97

*All trademarked images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use. All products advertised here are AMSOIL-engineered for use in the applications shown.


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.

ASTM D-1384

RDCB1 = Dominator® Coolant Boost In Straight Water

Copper Weight Loss

  • Allowable -10mg Max
  • RDCB1 - 1
  • Water Only - 25

Solder Weight Loss

  • Allowable -30mg Max
  • RDCB1 - 1
  • Water Only - 62

Brass Weight Loss

  • Allowable -10mg Max
  • RDCB1 - 1
  • Water Only - 23

Steel Weight Loss

  • Allowable -10mg Max
  • RDCB1 - 1
  • Water Only - 18

Cast Iron Weight Loss

  • Allowable -10mg Max
  • RDCB1 - 1
  • Water Only - 29

Cast Aluminum Weight Loss

  • Allowable -30mg Max
  • RDCB1 - 1
  • Water Only - 91

Simulated Service 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.

ASTM D-2570

RDCB1 = Dominator® Coolant Boost In Straight Water

Copper Weight Loss

  • Allowable -20mg Max
  • RDCB1 - 3
  • Water Only - 66

Solder Weight Loss

  • Allowable -60mg Max
  • RDCB1 - 0
  • Water Only - 120

Brass Weight Loss

  • Allowable -20mg Max
  • RDCB1 - 2
  • Water Only - 59

Steel Weight Loss

  • Allowable -20mg Max
  • RDCB1 - 0
  • Water Only - 54

Cast Iron Weight Loss

  • Allowable -20mg Max
  • RDCB1 - 0
  • Water Only - 117

Cast Aluminum Weight Loss

  • Allowable - 60mg Max
  • RDCB1 - 0
  • Water Only - 91

Recommendations

Use DOMINATOR® Coolant Boost 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.

Amsoil Product Warranty

AMSOIL products are backed by a Limited Liability Warranty. For complete information visit www.amsoil.com/warranty/.

Amsoil Dominator® Coolant Boost RDCB Buy Now/Pricing Information

Download Data Bulletin G2785 For Complete Product Information

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