3 years ago I replaced a radiator, 7k after that I had to do another it split at seam, then a 3rd 25k after that. I also replaced a wp, thermo, heater core, on this last one. I was told that if u usethe green coolant that it draws electrodes to high an can ruin the radiator system please advise I'm lost

 

The green antifreeze is the old type and used in older vehicles, the sometimes yellow or orange longlife stuff is typically the coolant used now, to my knowledge the newer type was designed for longer life and better non corrosive properties for the cooling system. What year of truck is yours and what engine do you have?