Prestone Radiator Cleaner Ratings New Radiator Or Radiator Flush?

New radiator or Radiator flush? - prestone radiator cleaner ratings

My 2001 Ranger has a negligent owner first plants to allow coolant remained in the truck for a few years. I drained my coolant and filled with a water hose and some coolant fresh greens in October and I never have any problems, even with A / C in hot weather, during the break. He recently received 100 + Hot on the hills and my car overheated and when I returned to the air during the downswing. I took it to the dealer and was told that my radiator is clogged, clean wouldnt color? What Prestone radiator cleaner? What are my options for a new radiator? The thermostat is fine btw.