stock 6.7 black smoking?

[DDurrett]

I have a 14 with 50k that soots up the exhaust. I took it to the dealer for recall and to check out smoke issue. Came back with stupid high idle (which I insisted I didn't want) and the all clear on ***.I do idle alot for work.Should I worry while I still have warranty,if its something serious,or just tune it already.

 

[6.0 Tech]

If it smokes on a neutral run up (in park or neutral revi it up to 3000 in a snap rev, dont hold it) it indicates the *** is internally cracked, and needs replacing. However, it may or may not be covered under warranty. I cant for the life of me remember what coverage is, as it is different for gvwr over 8500.