3rd iteration of it i think
The numbers are not the problem, the reliability of it is what's questionable.
Pretty much everybody I know with that diesel has had issues with it, top spot being my next door neighbor - his truck burned to a crisp on the driveway after major warranty work done on the engine at 80.000 miles. They had some back and forth and he got a brand new truck, similar trim. He sold it and got a Sierra.
He needed to get the driveway repaved, it was all melted.
"In January 2011, VM Motori launched its brand new engine 3.0L V6 Variable Valve Timing A 630 DOHC With 241 hp (180 kW; 244 PS) and 550 N⋅m (410 lb⋅ft) of torque. Thanks to a collaboration with Fiat Powertrain Technologies, the engine features the latest FPT Common Rail Multijet2 technology for improved performance, fuel economy and NVH. In 2013, the engine was redesigned to comply with Euro5+ emissions standards.
The first application of the A 630 DOHC was the 2011 Grand Cherokee. The same engine also powers the Ram 1500 and Jeep Grand Cherokee Eco-Diesel since 2014, and in lightly tuned form, the Maserati Ghibli III. The engine won several awards including Ward's 10 Best engines of 2014 during its first model year of production in the Jeep &Ram. And has gone on for an unprecedented diesel 'repeat' winning Ward's Top 10 List again in 2015 and 2016.[16][17][18]"
"The 3.0-liter EcoDiesel V6 that will power the 2020 Ram 1500 is heavily revised and as a result, the company is calling it the third generation of the young engine."
"Compared to the second generation EcoDiesel, the engine coming for the 2020 Ram 1500 includes a new water-cooled turbocharger with a variable geometry turbine, redesigned cylinder head intake ports, a revised exhaust gas recirculating system, a higher compression ratio (now 16.5 to 1), redesigned direct injection fuel nozzles, new lightweight aluminum pistons, a new two-piece oil sump system and a new dual vacuum pump system. These changes reduce NVH levels and improve efficiency, leading to a cleaner-running engine that just-so-happens to produce quite a bit more power than the previous iteration of the EcoDiesel."