Roland I agree their out there, but the OP is thinking of buying used, Do you not agree its best to buy the Eco 3.0 with the worst case scenario in mind? So You have the Cash to repair if needed, the seller just going to tell the buyer back clouds never happen. This is the same statement I tell every used buyer, Your probably buying someone else's problems so buy accordingly, the 3.0 is a double down on that one....Its weekly postings of new buyers with problems.
I have lost count on How Many New owners have call Me buying parts or advice on how to Fix the truck after just weeks of ownership that the dealer wants $5,000.00+ plus to fix. or the tone ring failed and 1200 miles from Home with Camper and No one wants to touch it and the local Dealer says 3 weeks out plus the ride. I work with Many Makers Most Cummins , Duramax so 1 million plus vehicles, most of the calls I get from these owners are past 100K Miles.
The 3.0 By far the worst power plant I have ever owned, even My 3.0 was EGR/Plenum done at 44K miles.I now have learned it has been back at the dealership 8 times for other problems, 3-way Valve, Turbo, and coolant problems, Even My wife stated She has NEVER seen me baby sit a truck More, and when she seen all the fires online demanded I leave it outside at Home at the end of the driveway.
Roland I hope/want your 3.0 to be problem free, but if its not I hope your Bank account can support the happy Withdraw.
C'mon even VM has stop its ad campaign for the 3.0, and History has proven that's the first step before production ends, if that Happens it will be devastating to current owners.