@Red Horse,
I know I’m resurrecting this thread, but figured I’d offer my two cents.
I have two, 2016 F250’s. One Lariat and one XL, both 6.7 PSD w/ 4wd. Both have been solid, knock-on-wood w/ the XL holding duty as a true work truck and the Lariat carrying my fat a** around the southeast.
XL has 50k on the clock and the Lariat w/ 108k. XL has something like 800hrs idle time!
My biggest take away on these motors is maintenance. Keep engine oil and fuel filters changed, drain the fuel/water separator, run good quality diesel fuel, and stay on-top of required scheduled maintenance.
One thing I do like about and appreciate with these trucks is the ease of maintenance and access to fuel and oil filters. Same with EGR placement. First look under the hood looks like a cluster, but once ya get into the weeds it makes sense.
Hope this helps. Sorry for typos.