Review on Bar'S Leaks High Mileage Cooling System Repair, 16.9 Oz by Derek Evans

I usually don’t write reviews but this is one of the coolest products I’ve seen. There’s a chance it may not work and it warns of that on the bottle, but this is really a last option product to seal leaks. My radiator has a serious leak problem, drains in seconds. I put 1 bottle of this in it and in 15 minutes, sealed and holding coolant. For $12 you might as well try it to temporarily offset the $250-$400 you might pay on a replacement radiator. Definitely recommend. Beware though, don’t put it in if you still have antifreeze in the overflow.