We refused to make just another radiator flush. If we couldn’t develop one worthy of the Hy-per Cool 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, the highest-performing radiator cleaner and flush you can buy.

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

Cleans the entire cooling system
Removes deposits and coolant gel
Reduces overall operating temperature and efficacy 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 Radiator Cleaner & Super Flush by Rislone is for use in all…

There’s a lot going on under your hood. Our cars need protection and the right types of fluids to keep us on the road. Sometimes, antifreeze is just not enough to protect all the metal, plastic and rubber parts of your cooling system. That’s why we created the Rislone Cooling System Water Pump Lube with Anti-Rust.

This product protects aluminum, copper, iron and all other parts of the cooling system to help prevent the formation of rust and corrosion. The water soluble oil formula lubricates the thermostat and the water

pump seal. It is compatible with ALL brands of antifreeze and is a definite must-use if you only run water in the cooling system. This doubly applies for racing applications.

Rislone products are the fastest and safest…

What if we told you that in just 10 short minutes you could extend the life of your car’s cooling system? That’s right. Our Rislone Radiator 10 Minute Flush can quickly give your car the cleaning boost it needs to keep you and your car safely on the road.

Rislone Radiator 10 Minute Flush is fast, easy and safe to use. It contains no acid and needs no neutralizing. It is compatible with all automotive cooling systems and is safe to use on aluminum and plastic radiators.

Make this a part of your car’s maintenance routine by using this product every time you change your antifreeze. It’s affordable, easy, and will quickly get you back on the road.…

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.…

Noticing a puddle of fluid under your car is never a good way to start your day. What you need is a safe and easy way to stop that leak so you can get on with your day as planned. Our Rislone Radiator Stop Leak will do just that.

This product is specially designed to stop minor cooling system leaks and drips caused by normal cooling system wear and age. It works with ALL types and colors of antifreeze coolant and/or water.

Before you know it, you’ll stop that leak and get your car back on the road. Yes, you. No mechanic required.…