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Your cart is empty.Repairs leaks Prevents overheating Extends cooling system life WARNING: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
RC
Reviewed in the United States on May 18, 2024
I absolutely love it works every time. As long as you follow the directions, I've never seen any type of head gasket sealer work like this. I know I have a Leaking head gasket on my Subaru engine, that's for sure. This stuff holds up even at running it like a 120. Some miles an hour. It's still freaking holds out amazing stuff.What's gonna get a head gasket and replace myself? But never had to time and it's been three years since I Use the first bottle and know overheating whatsoever no more bubbles
Ann K.
Reviewed in the United States on May 17, 2024
product arrived on time, product looked watery and was thinking this might not work, the leak i had was small. but leaking none the less, access to the hose fitting was extremely inaccessible and uses an o-ring which o think was pinched when installed (recently), followed instructions, Poof no leak thumbs up on this product, will buy again when needed.
R
Reviewed in the United States on February 23, 2024
BG Universal Cooling System Sealer. Worked to seal a minor leak in my cooling system that I couldn't locate.
Inventor
Reviewed in the United States on November 7, 2024
Works awesome
David Fincher
Reviewed in the United States on October 21, 2024
Love it have been using big products for over 40 years
Customer
Reviewed in the United States on October 16, 2023
I had a coolant smell, must have been a tiny seepage because I never had any coolant loss or sign of leaks. One day after using this, no more smell. I have never been disappointed by anything that has the BG name on it!
BookGobbler
Reviewed in the United States on October 31, 2022
Have had a slow leak in my coolant for quite a while now and have taken my car several times to the mechanic when it would overheat, but he hasn't been able to find the leak. I'm lucky that he's a great guy and hasn't charged me when he couldn't find the leak. My brother years ago worked for BG and recommended this for my car problem. I put it in with my antifreeze and the leak has slowed WAY DOWN. I use to have to put anti freeze in every couple of weeks, but it hasn't needed any for about 8 weeks now. The way my brother explained it to me is that there is some small particles in this liquid that as it moves through the system it attaches to any holes and slowly fills in the gaps. The last time I put antifreeze in I didn't have to put in near as much as I use to. I'm talking about putting in the whole container of antifreeze in the past compared to only a couple of cups of antifreeze the last time I put any in. I'm hoping the leaks have all been sealed up, but I'll keep checking.
Edward Troutt
Reviewed in the United States on May 2, 2020
Works good
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