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AMSOIL DOMINATOR® Coolant Boost

Product code : RDCBCN-EA

4.9 star rating
Read 68 reviews

AMSOIL DOMINATOR® Coolant Boost

Product code : RDCBCN-EA

4.9 star rating
Read 68 reviews
Current price:

$17.99

Retail Price
Estimated delivery by Fri, Jul 24 to Columbus - 43215.

    • Provides effective heat transfer and enhanced corrosion protection
    • Reduces engine temps up to 25°F (13.8°C)
    • Helps vehicles warm up an average of 54% faster

  • We offer easy returns for customers. If your product is unused and unopened, you may return it within 30 days for a full refund of the purchase price. View full AMSOIL Return Policy.

  • We accept Visa, Mastercard, American Express, Discover and PayPal, and provide secure checkout and encrypted payment processing.

About this item

  • Improves heat transfer for increased horsepower. Reduces engine temperatures. Radiator-safe. Helps prevent corrosion in high-performance racing applications. Compatible with all water sources, including distilled, bottled and tap water. Shortens warm-up time. Safe for use with antifreeze mixes.

    See the Product Data Bulletin for full details.

    REDUCES ENGINE TEMPS

    • Unlike other products, DOMINATOR Coolant Boost uses three surfactants, each designed to operate in a different temperature range, to increase liquid-to-metal contact.
    • Closer contact with metal parts increases the coolant’s efficiency in transferring heat away from hot engine parts and out through the radiator and fan.
    • Reduces engine temperature up to 25°F (13.8°C) for maximum efficiency.

    FIGHTS DAMAGING CORROSION

    • Delivers outstanding corrosion protection for maximum cooling-system performance and life.
    • In industry testing, limited corrosion on the six metals most commonly found in cooling systems (copper, solder, brass, steel, cast iron and cast aluminum).
    • Excellent protection in racing applications using straight-water coolant.

    FASTER ENGINE WARM UP

    • Proprietary tiered-surfactant technology helps engines warm up an average of 54% faster.
    • Helps the defroster begin working sooner and the cabin warm more quickly in passenger vehicles on cold days for maximum comfort.

    See the Product Data Bulletin for full details.

  • Data Bulletin

    Warranty

    SDS



  • 4.9 star rating
    Based on 68 reviews
    See all customer reviews
    • 5 star rating
      It just works great!
      By  DAVE,  a  Verified Buyer  from  Close to Austin TX.  on  July 18, 2026
      08 F150 with 165K miles on it. Can't remember when I last flushed the radiator. The overflow tank was looking not-so-good. I used the Amsoil flush, ran a bunch of water through the system, while the inside heater was on, and once everything was running clear, I emptied the radiator, engine and anything else I could. Installed the Amsoil coolant and warmed the engine up, topped it off and haven't had any issues since. I've only run it less than 500 miles, but Amsoil is begging me for a review, so here you go. The flush worked wonders. The coolant, we'll have to go more miles. so far, so good.
      Was this review helpful?
    • 5 star rating
      Great
      By  KYLE,  a  Verified Buyer  from  Cedar lake   on  April 29, 2026
      Great dose the job
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Engine Warms Up Faster and Heat is Hotter in Cabin
      By  GARY,  a  Verified Buyer  from  South Carolina  on  March 30, 2026
      Does what it says it does. In the winter it warms up faster and looking forward to running cooler in the summer. Recently added to my maintenance routine on all 3 of my vehicles because I've been so impressed with all AMSOIL's products I've tried.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Works well
      By  JEFF,  a  Verified Buyer  on  January 06, 2026
      have been using coolant boost in our Miata race car for a few seasons now with good results
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Holy Heat
      By  SHAWN,  a  Verified Buyer  from  Pennsylvania   on  November 15, 2025
      Highly recommend after a radiator flush. This stuff will increase your heat in cold seasons. My Truck feels like a campfire.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Hotshot
      By  LANCE,  a  Verified Buyer  from  Tennessee  on  October 15, 2025
      Definitely makes ur truck warm up faster
      Was this review helpful?
    • 5 star rating
      Satisfying Results
      By  DERECK,  a  Verified Buyer  from  Washington, DC  on  September 25, 2025
      I have a used 2017 Kia Sorento LX AWD that consumes oil. I did not research the vehicle deep enough before I made the purchase. I like the way the vehicle rides and it was well kept. I discovered the oil consumption issue and started doing research to treat the issue and I found the Amsoil product. I Chose it for the quicker engine warm-up and cool down results to help ease the stress on the oil. I also added Oil Stabilizer from another brand.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Great quality
      By  ROBERT,  a  Verified Buyer  from  Colorado   on  July 22, 2025
      I have been using this in my tow vehicle for awhile, seems to help keep the temperature down. Would recommend.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      First time using this product
      By  COREY L,  a  Verified Buyer  from  UT  on  July 08, 2025
      Excellent
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 4 star rating
      Seams good.
      By  QUENTIN,  a  Verified Buyer  on  May 01, 2025
      I just started using it. It seams like it helps warm up a little quicker.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?

    • Provides effective heat transfer and enhanced corrosion protection
    • Reduces engine temps up to 25°F (13.8°C)
    • Helps vehicles warm up an average of 54% faster

  • We offer easy returns for customers. If your product is unused and unopened, you may return it within 30 days for a full refund of the purchase price. View full AMSOIL Return Policy.

  • We accept Visa, Mastercard, American Express, Discover and PayPal, and provide secure checkout and encrypted payment processing.

  • Improves heat transfer for increased horsepower. Reduces engine temperatures. Radiator-safe. Helps prevent corrosion in high-performance racing applications. Compatible with all water sources, including distilled, bottled and tap water. Shortens warm-up time. Safe for use with antifreeze mixes.

    See the Product Data Bulletin for full details.

    REDUCES ENGINE TEMPS

    • Unlike other products, DOMINATOR Coolant Boost uses three surfactants, each designed to operate in a different temperature range, to increase liquid-to-metal contact.
    • Closer contact with metal parts increases the coolant’s efficiency in transferring heat away from hot engine parts and out through the radiator and fan.
    • Reduces engine temperature up to 25°F (13.8°C) for maximum efficiency.

    FIGHTS DAMAGING CORROSION

    • Delivers outstanding corrosion protection for maximum cooling-system performance and life.
    • In industry testing, limited corrosion on the six metals most commonly found in cooling systems (copper, solder, brass, steel, cast iron and cast aluminum).
    • Excellent protection in racing applications using straight-water coolant.

    FASTER ENGINE WARM UP

    • Proprietary tiered-surfactant technology helps engines warm up an average of 54% faster.
    • Helps the defroster begin working sooner and the cabin warm more quickly in passenger vehicles on cold days for maximum comfort.

    See the Product Data Bulletin for full details.

  • Data Bulletin

    Warranty

    SDS



  • 4.9 star rating
    Based on 68 reviews
    See all customer reviews
    • 5 star rating
      It just works great!
      By  DAVE,  a  Verified Buyer  from  Close to Austin TX.  on  July 18, 2026
      08 F150 with 165K miles on it. Can't remember when I last flushed the radiator. The overflow tank was looking not-so-good. I used the Amsoil flush, ran a bunch of water through the system, while the inside heater was on, and once everything was running clear, I emptied the radiator, engine and anything else I could. Installed the Amsoil coolant and warmed the engine up, topped it off and haven't had any issues since. I've only run it less than 500 miles, but Amsoil is begging me for a review, so here you go. The flush worked wonders. The coolant, we'll have to go more miles. so far, so good.
      Was this review helpful?
    • 5 star rating
      Great
      By  KYLE,  a  Verified Buyer  from  Cedar lake   on  April 29, 2026
      Great dose the job
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Engine Warms Up Faster and Heat is Hotter in Cabin
      By  GARY,  a  Verified Buyer  from  South Carolina  on  March 30, 2026
      Does what it says it does. In the winter it warms up faster and looking forward to running cooler in the summer. Recently added to my maintenance routine on all 3 of my vehicles because I've been so impressed with all AMSOIL's products I've tried.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Works well
      By  JEFF,  a  Verified Buyer  on  January 06, 2026
      have been using coolant boost in our Miata race car for a few seasons now with good results
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Holy Heat
      By  SHAWN,  a  Verified Buyer  from  Pennsylvania   on  November 15, 2025
      Highly recommend after a radiator flush. This stuff will increase your heat in cold seasons. My Truck feels like a campfire.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Hotshot
      By  LANCE,  a  Verified Buyer  from  Tennessee  on  October 15, 2025
      Definitely makes ur truck warm up faster
      Was this review helpful?
    • 5 star rating
      Satisfying Results
      By  DERECK,  a  Verified Buyer  from  Washington, DC  on  September 25, 2025
      I have a used 2017 Kia Sorento LX AWD that consumes oil. I did not research the vehicle deep enough before I made the purchase. I like the way the vehicle rides and it was well kept. I discovered the oil consumption issue and started doing research to treat the issue and I found the Amsoil product. I Chose it for the quicker engine warm-up and cool down results to help ease the stress on the oil. I also added Oil Stabilizer from another brand.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Great quality
      By  ROBERT,  a  Verified Buyer  from  Colorado   on  July 22, 2025
      I have been using this in my tow vehicle for awhile, seems to help keep the temperature down. Would recommend.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      First time using this product
      By  COREY L,  a  Verified Buyer  from  UT  on  July 08, 2025
      Excellent
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 4 star rating
      Seams good.
      By  QUENTIN,  a  Verified Buyer  on  May 01, 2025
      I just started using it. It seams like it helps warm up a little quicker.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?

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