Ratings & Reviews for Bar’s Leaks Bars Leaks Liquid Aluminum Radiator and Heater Core Cooling System Radiator Stop Leak 16.9 oz
Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise this leak sealant for effectively stopping radiator and heater core leaks within minutes or after a short drive. Most report dramatic results like "leak completely stopped" and "sealed up my radiator quick," calling it a life saver. Reviewers consistently highlight its affordability and ease of use—simply pour and drive without tools or professional help—often saving hundreds on repair costs. Many report sustained success over weeks or months, with some using it repeatedly over years for older vehicles. A few note it works only for minor leaks, not major damage, but overall customers strongly recommend it as a reliable temporary solution.
Customer review summary generated by AI, including incentivized reviews.Great product
Would Recommend[This review was collected as part of a promotion.] Bought last month to seal up leaky radiator. Worked great
From Rislone
Well worth the money!
Would Recommend[This review was collected as part of a promotion.] If you've ever replaced a heater core on a silverado you know what i mean! Saved hours of work!
From Rislone
great product!
Would Recommend[This review was collected as part of a promotion.] I bought this stuff a couple months ago when I had a small coolant leak and it's plugged it right up! And now that my sister's car is leaking I recommended her this awesome product and she also has very high opinions of it!
From Rislone
Good part
Would RecommendI used this again seems to work. I will continue to use this product
From Rislone
Great product
Would RecommendI was doubtful it would work however the product proved me wrong.
From Rislone
Amazing product
Would Recommend[This review was collected as part of a promotion.] I bought today and it was amazing I will definitely be back
From Rislone
Save the day on the road dropped two in a Cummins
Would Recommend[This review was collected as part of a promotion.] Used it in a Semi truck with Cummms ISX15 saved a day
From Rislone
Barr’s leaks Jack oil
Would RecommendGreat product for floor jack to help keep working.
From Rislone
Bard is gresg
Would Recommend[This review was collected as part of a promotion.] I bought this a month ago not knowing exactly how well it will work. It’s been great my radiator no longer leaks
From Rislone
Awesome product
Would Recommend[This review was collected as part of a promotion.] It fixed my radiators just like it said it would, I’m very happy with it.
From Rislone
Bar product
Would Recommend[This review was collected as part of a promotion.] The bar product is a great product I really like the bar name it's new to our family we now use bar products
From Rislone
Works Great
Would Recommend[This review was collected as part of a promotion.] I used this stop leak and had excellent results. 10/10 very grateful for the product!
From Rislone
Radiator fix
Would RecommendUsed this in my vans radiator and haven’t had any leaks since. Highly recommend
From Rislone
Bar leaks liquid
Would Recommend[This review was collected as part of a promotion.] It's a good product.very positive results,No more leaks
From Rislone
Works great
Would RecommendI had a small leak in my radiator and bought this to stop it. It worked!!!
From Rislone
easy to follow directions
Would Recommendmy 1997 Thunderbird was leaking at heater core, with just one time use the leak stopped and heater is working good as new!
From Rislone
Stops leaks
Would Recommend[This review was collected as part of a promotion.] Used it on my radiator with a small dribble leak and it fixed it super quick
From Rislone
Works perfectly exactly what I needed
Would RecommendBought this about a month ago a month and a half ago and I'm so happy that I didn't have to change the entire radiator thank you very much for making this product
From Rislone
Great product
Would Recommend[This review was collected as part of a promotion.] Bought it for our 350k mile Prius and sealed the leaking head gasket!
From Rislone
Rated good
Would Recommend[This review was collected as part of a promotion.] I bought this and put in my jeep and got though the 10 months I needed to save up get new car so it did its job .
From Rislone