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Hy-per Cool Radiator Cleaner & Super Flush (HFL400)

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What it's for:
  • Cooling System
What it does:
  • Cleans
  • Cleans the entire cooling system
  • Removes deposits and coolant gel
  • Instantly neutralizes acids that cause corrosion
  • Helps prevent formulation of scales & deposits
  • Do I have to drain my radiator first?

    Yes, per the label directions you are supposed to drain the system and install just water.

  • Does Radiator Cleaner & Super Flush contain acid?

    No, and it requires no neutralizing.

  • Can this be used with copper, aluminum, and plastic radiators?

    Yes, since this contains no acid, you can use in old and newer vehicles with copper, aluminum, and plastic radiators.

  • Will Rislone Hy-per Cool Radiator Cleaner & Super Flush hurt my cooling system?

    No, it is a non-acid formula and is safe to use on all cooling system materials. It is harmless to all parts of the cooling system, including aluminum.

  • What are the dosage recommendations?

    One bottle cleans up to 16 quart (4 gallon) systems. For larger vehicles use one 16-ounce bottle of Radiator Cleaner & Super Flush, part number HFL400, for every 12 quarts of system capacity.

  • 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 refused to make just another radiator flush. If we couldn’t develop one worthy of the Rislone name, we wouldn’t put it in our product lineup.

After several significant refinements to our product formulation, what emerged from our lab was Hy-per Cool by Rislone, the highest-performing radiator cleaner and flush you can buy.

Hy-per Cool by Rislone Radiator Cleaner & Super Flush is a professional-grade, proven formula that effectively:

  • Cleans the entire cooling system
  • Removes deposits and coolant gel
  • Reduces overall operating temperature and improves performance of cooling system
  • Instantly neutralizes acids that cause corrosion
  • Helps prevent formulation of scales & deposits
  • Finishes the cleaning job in 30 minutes or less, no special expertise needed

Hy-per Cool by Rislone Radiator Cleaner & Super Flush is for use in all gasoline and diesel engines. The formula also contains a premium water pump lubricant, so there is zero risk to the pump, a common complaint with other brands.

Rislone has built its reputation by making high-performance products for high-demand, heavy duty and high-speed applications. We’re happy to put our name on this, and we stand by our products 100%.

Hy-per Cool by Rislone Radiator Cleaner & Super Flush – whether you need a light flushing or heavy-duty cleaning, we’ve got you covered.

Part Number: HFL400
Dosage: One bottle treats up to 16 quart systems.
Size: 16 FL OZ
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