Review on Bar'S Leaks High Mileage Cooling System Repair, 16.9 Oz by Ronald Dimatulac

My fj has very small pin hole on the plastic tank of the radiator. As following the instruction, the radiator was flushed and refilled with the brand new coolant, and then ran the engine for about 30 mins. However it did not stop the small pin hole as I dound it 2 days after. At least it did not clog the heater core but did not stop the coolant leak.