Review on Bar'S Leaks High Mileage Cooling System Repair, 16.9 Oz by Chris Pollreisz

Took my 2009 Buick LaCrosse CX to the shop and was told I'd need the timing cover gasket replaced ($1400). The mechanic said I could try this stuff and it worked almost immediately. Been a couple weeks and the leak is completely gone with no sign of coolant loss and no sign of cloggage (the heat still works great). I added this stuff right after my cooling system was flushed, and I made sure to continuously run the heat at full blast for the first couple days after adding it. Will update if an issue arises.