this looks interresting No DEF for 2011 dodge

[Trailer Trash 2]

I received a flier from Dodge and the new Cummings engin looks prity good especally the part of no DEF fluid needed.

ENHANCED CUMMINS ENGINE FOR 2500 & 3500
(LATE AVAILABILITY)
In the spring of 2011, Ram Heavy Duty Trucks will take the lead with a best-in-class maximum towing capacity of 22,700 pounds[2] for the high-output 6.7L Cummins® Turbo Diesel engine on 3500.
There's no diesel exhaust fluid (DEF) system required, and this available 350 horsepower engine will generate unsurpassed maximum torque of 800 lb-ft at 1600 RPM[1] when packaged with the available 6-speed automatic transmission on both 2500 and 3500 models. Add to that the Max Tow package, available for 3500 dual rear wheel models, and you get a gross combined weight rating (GCWR) of up to 30,000 pounds and up to 22,700 pounds of towing capacity.
Ram Heavy Duty trucks equipped with the Cummins 6.7L Turbo Diesel also boast a standard exhaust brake, providing optimal towing and braking performance. On top of Cummins' reputation for reliability, Ram trucks include an unsurpassed five-year, 100,000-mile powertrain limited warranty[3] on all 2011 engines and transmissions, helping owners rest easy.