I have a little over 42000 miles on my 2015 Eco diesel and believe I lost the motor last week. It has been at the dealer since Wednesday March 23rd and I still have no confirmation of what happened. I think the failure was a main bearing, but since they have to talk with Chrysler every step of the way it sounds like it might be at least 3 to 4 weeks before I get it back. I was in cruse control and started losing power, all gauges were normal. I started smelling oil and hearing a rattle in the motor. Then continued power loss with the oil pressure instantly falling to nothing. I was unable to shut it off because it had to be in park with the push button ignition, so by the time I got to the side of the freeway it was rattling somethings awful. I really liked the truck, but I have serious reservations now. I had to buy another truck so I can work. Sure glad I bought extended warranty, Chrysler is in no hurry. Has anyone heard of engine failures becoming a problem?