Bar's Leaks

Bar's Leaks Pelletized Radiator Stop Leak Additive Antifreeze & Coolant, 11 oz

$8.29
(4.36) 4.36 stars out of 14 reviews 14 reviews
$8.29
$8.29
Free overnigh delivery
FSA and HSA eligible
Bar's Leaks Pelletized Radiator Stop Leak Additive Antifreeze & Coolant, 11 oz

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Customer reviews & ratings

4.36 out of 5stars
(14 reviews)
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Most helpful positive review

5.00 out of 5 stars review
Verified Purchaser
06/26/2022
This stuff really works!
My review is not incentivized. This stuff really works. My cobalt was leaking antifreeze so bad to where my coolant would be completely empty after filling it completely full within 2-4 days depending on how much I was driving and would still leak even if it was just parked. I have tried other liquid type stop leaks on other vehicles in the past with no luck so after finding this pellet type I figured I'd give it a try before I took it into the shop. I only used half the bottle as directed and then immediately took my car on a about a 30 min drive around town to let the pellets have time to melt and seal holes. Over a month later now I still haven't had any leaking issues since. I will definitely recommend this product to everyone I know. You can't beat the price for it either.
Kimberly

Most helpful negative review

1.00 out of 5 stars review
Verified Purchaser
03/21/2022
RUINED MY ENGINE
I made a HUGE mistake using this stuff to seal a pinhole headgasket leak in a 2004 Honda Accord V6. It went through the headgasket, into the main cylinder and apparently seized up a valve stem. The valve failed, hit the piston, and now I have a broken valve, hole in the piston (interference engine)...and basically a ruined engine. What is sold as a $5 fix for a minor problem has turned into a $5,000 catastrophe. I have pictures showing the bent/broken valve, and "stop leak" all over the valve seat.
Alex
  • 5.00 out of 5 stars review
    Verified Purchaser
    07/20/2022
    Best bang for the buck and it works!
    Fixed my minor radiator leak in not sure about bigger leaks, but this solved my issue for under the $5 range!
    Mow
  • 5.00 out of 5 stars review
    Verified Purchaser
    06/26/2022
    This stuff really works!
    My review is not incentivized. This stuff really works. My cobalt was leaking antifreeze so bad to where my coolant would be completely empty after filling it completely full within 2-4 days depending on how much I was driving and would still leak even if it was just parked. I have tried other liquid type stop leaks on other vehicles in the past with no luck so after finding this pellet type I figured I'd give it a try before I took it into the shop. I only used half the bottle as directed and then immediately took my car on a about a 30 min drive around town to let the pellets have time to melt and seal holes. Over a month later now I still haven't had any leaking issues since. I will definitely recommend this product to everyone I know. You can't beat the price for it either.
    Kimberly
  • 5.00 out of 5 stars review
    Verified Purchaser
    04/26/2022
    Bar's Leaks pelletized Radiator stop leak
    BEST PRODUCT EVER!!! Don't listen to these people saying this stuff Don't work they are A LIE!!!! It's best for small leaks... if your radiator has a severe leak YOU JUST NEED A NEW RADIATOR LOVE. Try the junkyard they are real cheap if you're on a budget...
    Domonique
  • 1.00 out of 5 stars review
    Verified Purchaser
    03/21/2022
    RUINED MY ENGINE
    I made a HUGE mistake using this stuff to seal a pinhole headgasket leak in a 2004 Honda Accord V6. It went through the headgasket, into the main cylinder and apparently seized up a valve stem. The valve failed, hit the piston, and now I have a broken valve, hole in the piston (interference engine)...and basically a ruined engine. What is sold as a $5 fix for a minor problem has turned into a $5,000 catastrophe. I have pictures showing the bent/broken valve, and "stop leak" all over the valve seat.
    Alex
  • 5.00 out of 5 stars review
    Verified Purchaser
    05/30/2021
    Try it if you have small leak
    Didn't work on mine when I had a radiator leak so severe that it drained completely within a few minutes. But for a smaller leak this should work well. The pellets will clog up any small holes.
    DJ
  • 5.00 out of 5 stars review
    Verified Purchaser
    04/17/2021
    Best leak-stop, "permanent" for me!
    Tremendous and safe for your cooling system. Stopped my streaming leak the size of a pencil lead when other brands couldn't. The pellets are the difference and what makes it "heavy duty" capable of plugging the larger leaks... Important to idle the engine at least 30 minutes and until the leak visibly stopped. Been permanent since I then added 4 Oz of K-Seal product with (copper small enough) highly precision and smallest particulate to make it suspended then available for any future seeping that could develop, miracle that its really "cementing" where it's needed to prevent any later seeping. My Toyota with temperature controlling hvac works fine and wasn't diminished for heating and a/c, engine cooling system working normally. I expect to be able to get continued service on the radiator and when it's diminished I'll replace it. Tremendous!
    JoeCLEAN
  • 5.00 out of 5 stars review
    Verified Purchaser
    03/29/2021
    Yes, good stuff
    Definitely works. I used half and it stopped the leak, but I do recommend the whole thing. Lol
    PoodasMama
  • 5.00 out of 5 stars review
    Verified Purchaser
    02/08/2021
    Stop leaks
    Did the trick. No small leak.
    Kimmie
  • 5.00 out of 5 stars review
    Verified Purchaser
    02/04/2021
    We are good product! Really does stop the leak. I would definitely recommend to others.
    Rdleekiwi
  • 1.00 out of 5 stars review
    Verified Purchaser
    01/09/2021
    Recommended by several, what a joke. Didnt work.
    had three different mechanics recommend this when my heater core went out on my 96 Lincoln and it didn't solve the problem at all if anything it only complicated it further as my perfectly working radiator ended up blowing a seal and failing a week later with minimal driving at all other than to and from parts shops and the mechanic. Bars Leak = garbage.
    DarthBane
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