Rislone Hy-per Cool Super Coolant Antifreeze and Coolant, 16 oz
Rislone Hy-per Cool Super Coolant Antifreeze and Coolant, 16 oz
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Rislone Hy-per Cool Super Coolant Antifreeze and Coolant, 16 oz

4.6 stars out of 189 reviews
(4.6)|
189 ratings

Key item features

  • Cooling Performance: Reduces engine temperatures by up to 25°F, preventing overheating across all vehicle types through advanced wetting agents that enhance heat transfer.
  • Corrosion Protection: Offers maximum corrosion protection for all cooling system metals, including aluminum, and provides superior lubrication for water pump seals.
  • Universal Compatibility: Compatible with all types and colors of antifreeze coolant, making it suitable for diverse vehicle applications.
  • Product Specifications: Supplied in a 16 oz bottle, with assembled product dimensions of 2.75 inches D x 9.25 inches H x 2.75 inches W and a weight of 1.125 lb.
  • Advanced Formulation: Formulated with advanced wetting agents to lower the surface tension of the water/coolant mixture, improving the cooling system's efficiency.
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Current price is $7.3846.1 ¢/fl oz
Price when purchased online
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One-time purchase $7.38

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Rislone Hy-per Cool Super Coolant Antifreeze and Coolant, 16 oz $7.38 46.1 ¢/fl oz

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Customer ratings & reviews

4.6 out of 5 stars
stars189 ratings117 reviews
How item rating is calculated

Reviews summary

Pros
  • : Operates at lower temperatures.
  • : Runs at a lower temperature than expected.
  • : Maintains a consistent temperature in vehicles.
Neutral
  • : Can be efficient in moderate use, but may struggle with intense tasks.
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Showing 1-3 of 117 reviews

Mar 9, 2025
IntermediateCosplayer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Works just as good as the others

Works well / does what its designed to do with a higher water to antifreeze ratio and is very cost effective at the pricing point in comparison to other retailers selling it $10 and higher. Its also is cheaper than other brands that do the same which retail $14 or more. Ive only used one other higher priced brand and that is Redline Water Wetter and I haven't seen a difference in my using / vehicles. It wasn't in stock ( though it says it is ) at my local Walmart but it was shipped to me because it couldn't be found on the shelf.

Helpful?6PKJUWSNNNVQ16767896
Jul 21, 2025
Marty
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Notable Improvement product

Solid additive product and noticeable difference in vehicle operating temperature and cooler ac feel blowing. Utilized in 1999 Toyota 4Runner SR5.

Helpful?6PKJUWSNNNVQ16767896
Aug 5, 2025
WalmartCustomer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

hoping this helps a slight over heating problem... cheaper than a flush and fill of the radiator for my car.

Incentivized Review
Helpful?6PKJUWSNNNVQ16767896