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DOMINATOR® Coolant Boost
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Dominator Coolant Boost has been reformulated with the latest organic-acid technology. The new technology adds to the benefits provided by the previous formulation, including reduced engine temperatures by up to 25ºF (previously 19ºF) in straight-water applications and up to 54 percent faster engine warm-up times (previously 45 percent).



Organic acids are more robust and longer-lasting than inorganic acids, offering excellent resistance to scaling, drop-out and corrosion. They also contribute to improved compatibility; the new Dominator Coolant Boost formulation can be mixed with soft, tap and distilled water, in addition to any brand of antifreeze. 

While racers derive the most value from Dominator Coolant Boost, it provides benefits for everyday motorists, too.
AMSOIL DOMINATOR® Coolant Boost (RDCB)

Provides 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.
SAVE UP TO 25%

$10 for a six-month membership
Save up to 25% on Every Order
Exclusive promotions and more
FREE SHIPPING

Order $100 or more in AMSOIL products at full retail prices and receive free ground shipping anywhere in the continental U.S.