Bar's Leaks High Mileage Cooling System Repair Antifreeze & Coolant 16.9 oz
Bar's Leaks High Mileage Cooling System Repair Antifreeze & Coolant 16.9 oz
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Bar's Leaks High Mileage Cooling System Repair Antifreeze & Coolant 16.9 oz

4.4 stars out of 377 reviews
(4.4)|
377 ratings

Key item features

  • Leak Prevention: Stops coolant leaks and reduces antifreeze loss, offering future protection for the cooling system.
  • Enhanced Performance: Features a high mileage formula designed to improve overall cooling system function.
  • Overheating Protection: Contains Xtreme Cool technology to prevent overheating and effectively lower water temperature.
  • Universal Compatibility: Works with all vehicle types, including gasoline, turbocharged, and diesel engines.
  • Antifreeze Versatility: Compatible with all 50-50 mix types and colors of antifreeze coolant, as well as water.
  • Problem Correction: Scientifically formulated to correct various cooling system issues, helping to avoid costly repairs.
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Current price is $8.9753.1 ¢/fl oz
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One-time purchase $8.97

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Bar's Leaks High Mileage Cooling System Repair Antifreeze & Coolant 16.9 oz $8.97 53.1 ¢/fl oz

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Customer ratings & reviews

4.4 out of 5 stars
stars377 ratings195 reviews
How item rating is calculated

Reviews summary

Pros
  • : Directions are easy to follow.
  • : Slows or stops small to moderate leaks.
Neutral
  • : Can seal small leaks, but may clog in some cases.
  • : Can be effective for some leaks, but may clog or not drain in others.
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Showing 1-3 of 195 reviews

Sep 28, 2025
Daniel
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Highly recommended

Great product! It saved my radiator actually I made it through the heat of the summer. It took a second bottle of it before it worked completely but my truck had a sizable leak so it was still better than replacing the radiator. I am very satisfied and suggest using it because convenience and value. It saved me a lot of money and time. Thank you

Helpful?2GKVG8MKYFAJ23554603
Mar 30, 2025
sophia
5 out of 5 stars review

Verified Purchase

just be aware. this product does freeze. we were in a weather pattern where we'd have several really warm days followed by several really cold etc. and i was unaware that this product would freeze like it did. not good for your vehicle to say the least! but its seems to have helped none the less.

Helpful?2GKVG8MKYFAJ23554603
Oct 22, 2014
justme16637
Walmart Associate
5 out of 5 stars review

small hole in radiator

I had a pinhole in my radiator and it's an older car so I didn't want to spend a lot of money on fixing it. I read some reviews and decided on this product based on reviews here and information and guidelines on Bar's website. I added the product to my radiator, and once it heated up, it started to leak, after about a minute, the leak stopped. I let it run for about 20 minutes and no leaks!!! WHO-HOO!!

Helpful?2GKVG8MKYFAJ23554603