Racers demand lower engine operating temperatures in order to
achieve maximum efficiency and horsepower on the track, while the
straight water coolant used by many racers opens engines up to
damaging radiator and water pump corrosion. AMSOIL Dominator®
Coolant Boost (RDCB) provides racers and motorists with significantly lower engine operating temperatures, quicker engine 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, which results in reduced operating
temperatures, more efficient operation, increased horsepower and
significantly reduced engine warm-up times in cold weather. 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.
Testing
Competitive testing comparing AMSOIL Dominator Coolant Boost and Red Line Water Wetter® was conducted in an independent
laboratory. The ASTM corrosion tests featured in this study are designed to simulate the most grueling conditions cooling systems
face, and are the actual test standards the automotive industry relies upon for the approval of engine coolant products.Test results
show Dominator Coolant Boost provides enhanced temperature reduction and corrosion protection properties over Red Line Water
Wetter.
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 coolant stabilized at 220°F and a 50/50 antifreeze/water mixture
stabilized at 228°F.
| Temperature Reduction (in degrees Fahrenheit) |
| | Dominator Coolant Boost | Red Line Water Wetter |
Mixed with 50/50 Antifreeze/Water | 6°F reduction | 3°F reduction |
Mixed with Straight Water Coolant | 19°F reduction | 12°F reduction |
Cast Aluminum Alloys Corrosion Test
The Cast Aluminum Alloys Corrosion Test (ASTM D-4340) 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 D-4340 |
| | Dominator Coolant Boost | Red Line Water Wetter | Water Only |
| Weight Loss in mg (1.00 max) | 0.14 | 0.21 | 3.97 |
Corrosion Test in Glassware
In the Corrosion Test in Glassware (ASTM D-1384), 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 |
| | Allowable | Dominator Coolant Boost
(in straight water)
| Red Line Water Wetter
(in straight water) | Water Only |
| Copper weight loss (mg) | 10 max | 1 | 1 | 25 |
| Solder weight loss (mg) | 30 max | 1 | 6 | 62 |
| Brass weight loss (mg) | 10 max | 0 | 2 | 23 |
| Steel weight loss (mg) | 10 max | 1 | 1 | 18 |
| Cast Iron weight loss (mg) | 10 max | 0 | 0 | 29 |
| Cast Aluminum weight loss (mg) | 30 max | 0 | 16 | 91 |
Simulated Service Corrosion Test
In the Simulated Service Corrosion Test (ASTM D-2570), 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 fl ow 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 |
| | Allowable | Dominator Coolant Boost
(in straight water) | Red Line Water Wetter
(in straight water) | Water Only |
Copper weight loss (mg) | 20 max | 7 | 6 | 66 |
Solder weight loss (mg) | 60 max | 0 | 25 | 120 |
Brass weight loss (mg) | 20 max | 3 | 5 | 59 |
Steel weight loss (mg) | 20 max | 0 | 4 | 54 |
Cast Iron weight loss (mg) | 20 max | 0 | 2 | 117 |
Cast Aluminum weight loss (mg) | 60 max | 0 | 34 | 89 |
Recommendations
Dominator Coolant Boost is recommended with both
racing applications using straight water coolant and
automotive applications using 50/50 coolant/water
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. Do NOT use distilled water unless
mixed with 50% antifreeze.
Dosage: For straight water applications, add 2 fl. oz.
of Coolant Boost per quart of tap or softened water.
For 50/50 coolant/water applications, add 1 fl . oz. of
Coolant Boost per quart of 50/50 mix.
Frequency: In applications using Coolant Boost with
straight water, drain and re-fill the coolant system and
add Coolant Boost once per year or when indicated
by color change. A distinctive pH color change indicates
when the pH has fallen to a point where
corrosion can set in. When the Coolant Boost/water
mixture changes from pink to clear, another dosage
of Coolant Boost should be added. Monitoring the
pH level will ensure all vital areas of the cooling
system are protected against corrosion.
In applications using Coolant Boost with 50/50 coolant/water mixtures, add Coolant Boost once per year
or every 30,000 miles, whichever comes first. Follow
coolant manufacturer recommendations for coolant
change intervals.