Hi all. I’ve been posting different topics lately as I continue to work on my 6.0. Anyway, I’m going to be replacing my fan clutch with a new Ford clutch, and water pump with a new bullet proof one while I’ve got it apart. Right now my truck has red extended life coolant in it, and the place that did the headgaskets before I bought the truck from a guy a work with put it in. My question is, should I still use it when I go to refill the system, or should I go back to the Ford gold coolant? Or any other good kind/quality? Thanks in advance.