Leak stop

[BOURRET]

Who has used anti coolant leak products such as "Bar's" with "Rhizex" pellets?
Were they useful? Did you noticed side effects (overheating, clogging)???

[ERA Chas]

I have used the Bars Leaks product which is dry tablets about one inch in diameter. They come on a package of six. They have worked excellently. I dissolved them in a 12oz. bottle of water and added them to the coolant. When coolant came up to operating temp the leak was gone and stayed gone.
I have been told to not use their product which is a brown liquid with pellets.

[xlr8or]

You might want to check into ceramic sealers as well. They are a bit more of a pain to use but work pretty damn good.

[jwd]

I've used the powder aluminum sealer with great success. Many car makers add it to new cars to reduce warranty claims due to minor leaks.

[madmaxx]

Bars leak is one of the best automotive products ever invented. Every new car manufacturer utilizes some type of leak preventative product such as bars leak. I have numerous GM and Ford dealership service manuals (the one's like phone books) and they clearly state if the cooling system is drained to add 4 tablets.

You cannot go wrong putting a dose in. I had an old Lincoln Mark 4 with a 460 and the water was a stream comming out of the radiator, put the stuff in, stopped before my eyes and sold the car 4 years later.