Here are a few more performance upgrades introduced in 2013 to the Cummins diesel 24V 6.7L I6. The new selective catalytic reduction (SCR) was introduced. It is more efficient than Lean NOx Trap (LNT) technology. It also has a larger exhaust-gas recirculation (EGR) cooler which decreases the production of soot and fuel dilution. This enables you to go 15,000 miles between oil changes. This was longer than any other vehicle in its class at the time.
It was also easier to cold-start the Cummins 6.7L in the new 2013 diesel engine and Dodge introduced a “smart” electronic exhaust brake by using the variable-geometry turbocharger. Additionally, the computer did a better job of managing the EGR flow rates to help with de-sooting (or intake cleaning). Since it was an SCR-equipped diesel, it was certified to run on B-20 which is 20% biofuel.
On the frame was mounted a fuel filter/water separator which had 3-micron particulate filtration and water stripping. It had a unique venting system. It kept water and dirt from getting in the tank and a warning light would go on when you needed to drain the sump.
A few years later, for the 2016 Ram pickups, the Cummins 6.7L gave you 900 pound-feet of torque in the Ram 2500 and 3500 models. This set a record at the time for torque in mass-produced vehicles. The extra torque came courtesy of a new fuel delivery and turbo boost calibration. It allowed the 2016 Ram 3500 to break the record which was previously held by the old Ram 3500. The 2016 Ram trucks had some minor changes to the drivetrain to handle the additional capacity.