DEF Issues
I drove a RAM 2500 diesel for 12 years until I upgraded to a pre-owned 2014 3500 diesel earlier this year. I knew nothing about DEF when I bought the "new" truck in March. My first introduction to D...
Forum Discussion
DEF is used to break down NOx which is created when running hot. That is why you use more while towing.
Soot in the exhaust is created while running cool and therefore more exhaust cleaning activity when not towing.
DEF has nothing to do with soot.
Soot in the exhaust is created while running cool and therefore more exhaust cleaning activity when not towing.
DEF has nothing to do with soot.
