Since I purchased my 2017 CTD at the end of March, I've experienced 5 CEL's associated with random misfires and DPF regen failures. In one case the vehicle went into limp mode while on a road trip and left me on the side of the road awaiting road service. After a cool down and clearing that specific code, I was back on the road and had no further issues until another random misfire code popped up 200+ miles later. The analysis by several dealer technicians over a series of visits and code clearing has been inconclusive and no root cause has been found however the techs consensus was the DPF system has an intermittent fault. My neighbor had the same problem after buying his truck new in 2016. So, it is time for a change related to the DPF system, specifically, removing the system. This Friday I will turn the truck over to the shop for a DPF system removal, EGR cooler and throttle valve delete with new turbo back piping to the stock muffler, a custom tune and some transmission tuning as well. I'll let ya know how it goes.