Cooling System Repair (21150)

Cooling System Repair (21150)
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What it's for:
  • Cooling System
What it does:
  • Repairs
  • Stops Leaks
  • Restores Performance
  • Reduces Antifreeze Loss and Costly Breakdowns
  • Stops Coolant Leaks & Overheating
  • Adds Protection
  • Can Rislone® Cooling System Repair be installed in existing antifreeze coolant?

    Yes, Cooling System Repair is specifically designed to be directly added to the cooling system without having to flush out the antifreeze, as long as manufactures recommendations are followed. It also can be used in water alone. NOTE: Cooling systems that are dirty or partially clogged should be flushed before usage.

  • Do I need to drain my cooling system after using Cooling System Repair?

    No, this product is designed to be left in the cooling system to protect from future leaks and overheating.

  • Can I install Cooling System Repair in my overflow reservoir?

    Yes, if direct access to the radiator cap is not available, install in overflow tank.

  • Will it work in the new extended life antifreeze?

    Yes, Cooling System Repair is compatible with ALL types of 50-50 mix antifreeze including yellow, orange, pink, red, blue, purple and green silicate based & non-silicate-based OAT / HOAT coolant and / or water.

  • Will this work in both domestic and import cars and trucks?

    Yes, Cooling System Repair will work in all types of water cooled vehicles.

  • How long does it take to see results?

    We recommend you drive/idle the vehicle for 15 minutes. In most cases the leak will be sealed instantly, but others will require up to 20 minutes. If the leak is not sealed in 20 minutes, a second application may be required or mechanical repair may be needed.

  • Will Cooling System Repair plug my heater core?

    No, Rislone High Mileage Cooling System Repair product is part of the next generation stop leak line which is certified to be used in all cooling system types. Safely and easily seal leaks in plastic, aluminum and metal (copper / steel) radiators, heater cores, gaskets and freeze plugs. Note: If using Rislone to stop heater core leaks, make sure you turn your heater control to HOT. Some vehicles have a valve that controls coolant flow through the core and is only opened in the HOT position.

  • What are the dosage recommendations?

    One bottle is designed to treat 6 to 15 liters of coolant capacity, which is the normal size for most vehicles. On smaller systems under 5.9 liters, only use half bottle, pouring equal amounts from each side. For larger systems use one bottle for every 15 liters of cooling system capacity.

  • How does Xtreme Cool™ make the vehicle run cooler?

    The Xtreme Cool™ additive in Cooling System Repair reduces the surface tension of coolant increasing the wetting ability. This improves heat transfer reducing coolant temperature helping to prevent overheating and leaks.

  • The bottle froze before I was able to use it, what can I do?

    If the bottle did not break from freezing, just let the product thaw out, shake well, and use as normal.

We know it can be frustrating when you are in a rush and notice a puddle of fluid under your car. We’ve been there. Questions start running through your mind: Where could that leak be coming from? Will I make it to my appointment on time? Do I even have the time or money to take my car to the shop? Luckily for you, we have the perfect product to help you get back on the road and back to your life.

Our Rislone Cooling System Repair has twice the performance of other products by not only stopping cooling system leaks, but adding future protection. It is scientifically formulated to stop coolant leaks, thereby reducing antifreeze loss, while correcting other cooling system problems helping to prevent costly repairs and breakdowns. In addition, Cooling System Repair contains Xtreme Cool™ which stops overheating and reduces water temperature.

Our product will help you keep cool so you can quickly and safely get your car back on the road. It’s worked for hundreds of thousands of customers. It’s time to let it work for you.

Part Number: 21150
Dosage: 1 bottle treats systems up to 15 liters.
Size: 500 mL
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