My degas bottle had some white residue on it and the retained head gaskets had some carbon streaks that were starting to leave the combustion chamber. They werent blown yet, but didnt have much life left on them.

Also, the truck had the turbo and FICM replaced in the last 20K miles, but the head gaskets hadnt been done. The oil cooler was getting plugged and I was worried what else might have been hurt.

 

I think the OP already covered that in his response. He had a better experience with that used truck dealer than you did. Can we move on?

That dead horse isn't going to get up, no matter how long you beat it.

 

Glad you came back, and thanks for posting the resolution