As I went down the list of things to do per the FAQ section, I decided to put the Prestone coolant flush "T" in the heater line, anticipating a full flush as the weather thawed and I could attached a hose. Meanwhile, I drained the system and put the Prestone Radiator Cleaner in, which recommends driving the truck for 3-4 hours before flushing the system and refilling it with new coolant.
Two weeks later and maybe 30 miles, I had a major leak in my radiator, which I then replaced. Apparently my radiator was on the way out, but the additive accelerated the failure, for sure. I guess it's better than it failing on the highway somewhere, but I don't think I'll ever use that stuff again!
Two weeks later and maybe 30 miles, I had a major leak in my radiator, which I then replaced. Apparently my radiator was on the way out, but the additive accelerated the failure, for sure. I guess it's better than it failing on the highway somewhere, but I don't think I'll ever use that stuff again!