I,ve read all opinions on what antifreeze to use in the 6.0. Most of you say to get rid of the Ford Gold and go with something with less silicate. I discovered tonite that the Gold creates a goo when mixed with an ethyl based antifreeze. I hope someone corrects me if I'm wrong, but it sounds like the Gold is OK by itself. My first project is a coolant filter and non chemical flush. My truck is stock with 165k 2006 f250.