Ratings & Reviews for Bar’s Leaks BAR'S LEAKS Cooling System Radiator Stop Leak Multi-Purpose 11 oz 4 Pack
Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise this radiator leak sealant for delivering fast, reliable results on small to moderate coolant leaks. Most report dramatic improvements—leaks stopping within 25 miles of driving, coolant no longer dripping, and odors disappearing within days. Many describe it as a lifesaving emergency fix that kept them on the road and avoided costly replacements. Reviewers consistently note sustained effectiveness over months, with some reporting sealed leaks lasting 4 to 9 months. Users appreciate its ease of use requiring no mechanical expertise and no system clogging. A few mention it's not a permanent solution, but the overwhelming consensus is that it works as advertised and delivers exceptional value.
Customer review summary generated by AI, including incentivized reviews.Great Stuff
Would RecommendBeen using thus brand since the 80s. Owned lots of cars that had leaks. ZI always turn to Bars to fix my leaks. Theyve been in business for years, thats speaks volumes. Thanks guys!
From Rislone
Best product on the market!
Would Recommend[This review was collected as part of a promotion.] By far the best product on the market! Does exactly what it claims to do!
From Rislone
Great works
Would Recommend[This review was collected as part of a promotion.] Fixed no longer leaking working the first time used
From Rislone
Liquid magic
Would Recommend[This review was collected as part of a promotion.] Had a leak and kept having to add antifreeze through out the day. Added a bottle of this and bam, all said and done. That sumbitch didn't leak a drop after that.
From Rislone
Problem fixed!!
Would RecommendWas recommended to try this to fix my leaky radiator. Solved the problem in no time. You made a believer out of me. Would use this product again!
From Rislone
Bar's stands the test of time.
Would Recommend[This review was collected as part of a promotion.] I have been using bars products for almost 40 years in one form or another. My first experience with Bar's was their radiator stop leak. My first cat was a Datsun B-210 I had it about a month and the radiator started leaking. I tried a few different products but nothing worked. My Dad told me to flush all that crap out of my radiator and gave me a bottle of Bar's. He said follow the directions and it will work. I had my doubts but I did as he...
From Rislone
Definitely did the job. No effect on my vehicle.
Would RecommendI bought this product in January/ 2025 and man, im sure happy I did.
From Rislone
Did good for 4 months
Would Recommend[This review was collected as part of a promotion.] I got it in October lasted tell January. Work finn
From Rislone
Radiator Not Leaking NOW
Would Recommend[This review was collected as part of a promotion.] Purchased about 4 months ago had a small radiator leak and radiator is still not leaking great product!!!
From Rislone
easy to use
Would Recommend[This review was collected as part of a promotion.] so easy poured it in and problem was fixed.had a small leak and stopped rite away.
From Rislone
Bold
Would Recommend[This review was collected as part of a promotion.] Works great on stopping my leaking radiator in my Ford f-250
From Rislone
250,000 miles strong!
Would RecommendWhen I developed a coolant leak while travelling on the water pump of my 1999 GMC Sierra 1500, I added a bottle with the hopes I could make it home to do the repair. What happened was the leak stopped and I forgot about it. 15 years and 250,000 miles later, the truck has 0ver 370,000 miles and no coolant leaks, still with the original water pump. Thank you, Bar's Leak!!!
From Rislone
Works
Would Recommend[This review was collected as part of a promotion.] Glad I bought saved a ton of money and worked fast
From Rislone
Great product
Would RecommendBought this today for my 97 Chevy used it as directed and it hasn't leaked since, will recommend this to my friends
From Rislone
Good stuff
Would Recommend[This review was collected as part of a promotion.] I used this product a year ago and still going strong strong
From Rislone
Work's Great
Would Recommend[This review was collected as part of a promotion.] Stopped Leaks Like Magic! Will Buy Again If The Need Arises!
From Rislone
Good stuff
Would Recommend[This review was collected as part of a promotion.] The best quick fix on the market. Has got me home more times than I want to admit. Just bought some block seal head gasket repair for the work truck another review coming soon.
From Rislone
Works!
Would Recommend[This review was collected as part of a promotion.] Was hesitant at first, but worked and sealed my radiator
From Rislone
Works on some leaks
Would Recommend[This review was collected as part of a promotion.] Worked on the small leak in my cooling system for my vehicle.
From Rislone
Great product!
Would RecommendI bought it for a coolant leak, and it worked immediately.
From Rislone