Radiator Super Flush (21201)

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What it's for:
  • Cooling System
What it does:
  • Cleans
  • Performance
  • Preventative Maintenance
  • Heavy Duty Formulation
  • Non-acid Formula Safe to Use
  • Harmless to All Parts of Cooling System
  • Use Every Time Changing Antifreeze
  • Do I have to drain my radiator first?

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

  • Do these 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.

  • How much do I put in my radiator?

    1 bottle treats a standard passenger vehicle/light truck. Use every time you change your antifreeze.

  • Will Rislone Radiator Flush hurt my cooling system?

    No, Rislone Super Radiator Flush 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?

    Use one 22 oz. bottle of Super Radiator Flush, part number 21201, for every 4-gallons.

Rislone Super Radiator Flush will help your cooling system by removing deposits that build up over time causing overheating. It’s an innovative, garage-tested formulation that’s specifically designed to clean solder bloom, oily residue, rust and scale. Its non-acid formula is safe to use on all cooling system materials.

Use this product every time you change your antifreeze and it’ll be sure to keep your car running safely and smoothly no matter where the road takes you.

Part Number: 21201
Dosage: Use one bottle of Super Radiator Flush for every 12 liters of capacity.
Size: 651 mL
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