AMSOIL Dominator Coolant BoostLowers operating temps up to 25°F!

New formula for 2016. AMSOIL Dominator Coolant Boost is a safe, cost-effective coolant additive that improves the heat transfer properties and corrosion resistance of straight water or antifreeze. Can be used in racing or street vehicles with gas or diesel engines. Reduces warm-up times in winter. Beats Red Line Water Wetter, Royal Purple Purple Ice and Lucas Coolant Boost.

Dominator Coolant Boost package sizes include:
473 ml (16-oz.) Bottle (or buy case of 6)

Beats Red Line, Royal Purple and Lucas

When mixed with straight water, AMSOIL Dominator Coolant Boost offers superior cooling abilty versus these popular competitors.

  • AMSOIL Dominator Coolant Boost (25°F reduction)
  • Royal Purple Purple Ice (22°F reduction)
  • Red Line Water Wetter (20°F reduction)
  • Lucas Super Coolant (20°F reduction)

Features and Benefits of AMSOIL Dominator Coolant Boost

  • For use in any type of antifreeze or straight water.
  • Improves heat transfer in rad and engine
  • Enhances corrosion protection
  • Lowers operating temps, combats overheating
  • Suitable for racing or street vehicles- gas or diesel
  • Reduces warm-up times in winter
  • Does not modify antifreeze “freezing” point
  • Lubricates seals and pumps
  • Prevents oxidation
  • Resists electrolysis and galvanic corrosion
  • Beats Red Line Water Wetter in corrosion and temperature testing

An Additive That Reduces Engine Temperatures

To fine-tune the new Dominator Coolant Boost formulation, extensive dyno testing was performed by AMSOIL. An engine was run at 4500 rpm until a steady coolant temperature was reached. Straight water leveled off at 220°F, while a mix of 50-50 antifreeze and water had a baseline temperature of 228°F. The chart below shows the amount of temperature reduction when AMSOIL Dominator Coolant Boost was added.

Coolant Temperature Reduction
50-50 Antifreeze Mixture W/Dominator Coolant Boost8°F
Straight Water W/Dominator Coolant Boost25°F

Reduces Cold Weather Warm-up Times

AMSOIL’s exclusive surfactant technology not only works at high temps, it also dramatically reduces winter warm-up periods. When coolant temperatures reach 120°F, the vehicle’s occupants start to feel warmth from the heater system. The surfactants in AMSOIL Dominator Coolant Boost improve heat transfer over regular 50-50 antifreeze mix. Engines with 50-50 antifreeze mix treated with the prescribed dosage of AMSOIL Dominator Coolant Boost reach an operating temperature of 120°F 54% faster than engines using regular 50-50 antifreeze mix.

Engine Warm-Up Reduction Times-1°C to 49°C-1°C to 82°C
50-50 Antifreeze Mixture6 min 18 sec11 min 18 sec
50-50 Antifreeze Mixture W/ AMSOIL Coolant Boost3 min 12 sec5 min 18 sec

Why You Shouldn’t Use Only Straight Water in Racing Engines

A common practice in race cars and vehicles operated in hot climates is to use straight water in the cooling system. The problem with using straight water as a coolant is its corrosive effects. Corrosion can congest cooling systems and damage water pumps. Adding AMSOIL Dominator Coolant Boost neutralizes the corrosive effects of straight water.

In independent trials using the standardized ASTM D1384 testing protocol, AMSOIL Dominator Coolant Boost was tested against straight water on a number of common engine and radiator materials. The values below represent weight “in milligrams” lost to corrosion.

MetalStraight WaterWater with Coolant Boost
Cast Iron29mg0mg
Cast Aluminum91mg0mg

Independent Comparison: AMSOIL Dominator Coolant Boost versus Red Line Water Wetter

A common additive used by high performance enthusiasts is Red Line Water Wetter. Although these two products perform similar tasks, the AMSOIL coolant additive uses a surfactant formula that takes effect during cold starts and keeps working right through to maximum temperature. The Red Line product works only during high operating temperatures. The advantage of this is that AMSOIL Dominator Coolant Boost decreases warm-up times and stabilizes temperatures from warm-up through to the engine’s upper temperature limits.

AMSOIL Dominator Coolant Boost offers improved corrosion protection and lower operating temperature over Red Line Water Wetter.  In independent, head-to-head testing, AMSOIL Dominator Coolant Boost and Water Wetter were tested for corrosion using common engine and radiator materials. The values below represent weight “in milligrams” lost to corrosion using the ASTM  D-2570 “Simulated Service” testing protocol. Both products were mixed with straight water at the prescribed mix rate.

MetalRed Line Water WetterAMSOIL  Dominator Coolant Boost
Cast Iron2mg0mg
Cast Aluminum34mg0mg

AMSOIL Dominator Coolant Boost also delivered lower operating temperatures versus Red Line Water Wetter. Testing was conducted on actual engines using straight water and 50-50 antifreeze blend.

Coolant TypeAMSOIL  Dominator Coolant BoostRed Line Water Wetter
50-50 Antifreeze Mixture8°C3.24°F
Straight Water25°F12°F

Suitable Applications for AMSOIL Dominator Coolant Boost

AMSOIL Dominator Coolant Boost can be used with either straight water in racing applications or with antifreeze mixtures for street applications. Coolant Boost is compatible with all antifreeze types. Vehicle types include:

  • Race vehicles
  • Street vehicles
  • Motorcycles/ATV
  • Snowmobiles
  • Marine engines
  • Diesel engines

Directions for Use

  • Add only to cool engine with ignition turned off.
  • Shake bottle of AMSOIL Dominator Coolant Boost
  • Pour prescribed amount into radiator or expansion reservoir
  • Start engine, turn heat on high and allow mix to circulate for 15 minutes.
  • For street applications using conventional antifreeze mixtures, add product once per year or every 50,000 km (30,000 miles). Change antifreeze at interval as prescribed by owners manual.
  • For straight water usage, change once per year or as coolant color dictates.

Mixing Rate of AMSOIL Dominator Coolant Boost

When Mixing with Straight Water

Can be used with tap, soft or distilled water. 

US Mix Rate
2 oz. of AMSOIL Dominator Coolant Boost per quart of water

Metric Rate
62.5 ml of AMSOIL Dominator Coolant Boost per litre of water

When Mixing with 50-50 Antifreeze/Water

US Mix Rate
1 oz. of AMSOIL Dominator Coolant Boost per quart of coolant

Metric Rate
31.25 ml of AMSOIL Dominator Coolant Boost per litre of coolant