man, half the fun of driving around a big ole truck like that is releasing all that beautiful black smoke! lol I've been hearing those 6.0s have been making good power
you know what them dodge guys say, you aint making serious power if you aint making serious smoke! rofl
Yes there is DEF and a bunch of other crap that you don't have to worry about. I have only had to fill my DEF twice and I am at 25K now. Not a big deal really as long as the system continues to work properly.