DEF - Usage
Just on my maiden voyage with my 2014 Ram 3500 Diesel pulling 13,500lb 2009 Cardinal 34'. Pulls like a dream very nice to drive however after 1,000 miles I have gone through 1/2 tank of def, 2.5 gals...
Forum Discussion
DEF allows the engine to run hotter and produce less particulates. The downside of this is increased NOx which is handled by the DEF after treatment. Since less particulates are being collected in the DPF, regens are less often with a DEF equipped engine.
