Originally Posted by Kcbigbadram
thats very interesting. keep us updated if you hear anything else. im thinking of purchasing a '13 cummins, ive heard both good and bad about the def
Here's what I do know about the urea systems on semi trucks.... the trucks that have it have worse fuel economy and less power. My dad owns his own truck (2002 Peterbilt 379 with a 550 CAT. No urea system) and after driving a few trucks that do have the urea system on it he said he will never buy a new truck that has it. So that gives you a bit of an idea on how bad it is.
Now that being said, it might not be AS bad on a Dodge Cummins.... but personally I wouldn't take the chance. I'd wait to find out what the '14's are going to come out with first.