Skip to Main Content
Shop by Vehicle

Customer Ratings & Reviews

AMSOIL DOMINATOR® Coolant Boost

Product code : RDCBCN-EA

4.9 star rating Read 59 reviews

Customer Rating

4.9

92% would recommend

  • 5 53
  • 4 5
  • 3 0
  • 2 1
  • 1 0

AMSOIL DOMINATOR® Coolant Boost

4.9 star rating Based on 59 reviews
  • 5 star rating
    OUTSTANDING PRODUCTS
    By  MICHAEL,  a  Verified Buyer  from  ILLINIOS  on  October 08, 2023
    THE BEST STUFF FOR YOUR CAR
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Great stuff!!!
    By  WALDEMAR,  a  Verified Buyer  from  Minnesota   on  September 19, 2023
    This stuff is really good and works like promised.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Dominator Coolant Boost review
    By  TODD A.,  a  Verified Buyer  from  South East Texas  on  September 02, 2023
    Well we all know that it's been hotter this year than normal. Recently purchased a new truck. Right out of the gate, normal running temps were perfect middle temp indicator on the gauge. Added the Coolant Boost to it. With in 2 days of normal running noticed the general operation temps drop 1/4 of previous temp indication prior to adding it to the radiator. Impressive.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Mercedes turbo
    By  JON,  a  Verified Buyer  from  Lake, St. Louis, Mo   on  August 05, 2023
    Used the product based on recommendations from the Internet. Vehicle performs better than before.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Hard to tell if there is a difference
    By  BRIMSTONE,  a  Verified Buyer  from  Kitchener Ontario  on  July 25, 2023
    Put this in radiator 5 months ago. Made sure the coolant was neutral (used ph paper to test).
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Works well
    By  JEFFREY,  a  Verified Buyer  from  Dallas  on  March 21, 2023
    Good stuff works well , added piece of mind .
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Get it !
    By  Big Ed,  a  Verified Buyer  on  February 01, 2023
    This really helps your coolant work well! Also helps lube those water pumps.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Dominatot coolant boost
    By  JOHN,  a  Verified Buyer  on  January 01, 2023
    Ex cellent product, I don't even know when the car is on. Keep up the excellent work.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Amazing products
    By  LUIS,  a  Verified Buyer  on  October 31, 2022
    Amazing products
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 4 star rating
    Didn’t lower temperature
    By  MATTHEW,  a  Verified Buyer  on  September 21, 2022
    I used this in a 2012 GMC 1500 , seemed to lower temperature, however used it my new to me 2017 Ram Cummins and didn’t see a reduction in towing temperature 🤷‍♂️
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 4 star rating
    Work good
    By  MARTIN,  a  Verified Buyer  from  Harrod, ohio  on  August 28, 2022
    Works good
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Fast wRm up
    By  WILLIAM,  a  Verified Buyer  from  Jersey   on  July 23, 2022
    My truck warms up at least five minutes faster with this product every 12 months I dump a bottle in works as advertised
    Was this review helpful?
  • 5 star rating
    It Really Works!
    By  RICHARD,  a  Verified Buyer  from  Sparks, NV  on  June 25, 2022
    My Chevy 409 project was running hot. I ended up water/air pressure washing the radiator and block to get rid of all 'coolant'. I then filled the system with only distilled water and Dominator. I have seen at least a 10 degree, if not 15, cooling of my big block beast! Follow the mixture guide.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Just add it
    By  JDR,  a  Verified Buyer  from  Michigan   on  March 25, 2022
    Why would you not just add this to your coolant, I can’t think of a downside of this.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Perfect for racing and off roading.
    By  BENJAMIN,  a  Verified Buyer  from  Yuma, AZ  on  March 13, 2022
    We use this in our race cars because it's cheaper than antifreeze and does a better job. I can keep a couple bottles of this in the trailer and if we damage a radiator or hose we can replace the part and grab some water to refill and we're back in business. Saves money and space.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    coolant boost..
    By  JAMES,  a  Verified Buyer  from  ny state..  on  March 10, 2022
    great product,, did just what it boasted.. thanx..
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Works as advertised
    By  EDDIE,  a  Verified Buyer  from  NC  on  February 09, 2022
    The coolant boost works well I have seen my warm up times basically cut in half
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 4 star rating
    Coolant Boost
    By  JOHN B,  a  Verified Buyer  on  January 10, 2022
    So far so good. Vehicle seems to warm up faster in cold weather.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Race car
    By  JEFF,  a  Verified Buyer  from  Unfortunately California  on  January 09, 2022
    I put this in my drag car with water only and you can almost hot lap the car. You only need five minutes to let the car cool and it good.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Cool
    By  MARK,  a  Verified Buyer  from  NC  on  January 05, 2022
    Dropped the temperature by 10 degrees
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?