Cummins 6.7’s Biggest Fan (Part 4): Exhaust System Explained

In 2010, a new set of emissions standards meant that most diesel trucks required Diesel Exhaust Fluid (DEF) additive in order to pass muster. Thanks to the clean technology in the 6.7L Cummins turbo diesel, the 2010 Ram HD is not one of those trucks. Check out the video above to watch Chief Engineer of Aftertreament Intergration explain to our buddy Tim exactly how the whiz kids at Cummins made this possible.


To follow all six legs of Tim’s trip, be sure to bookmark and keep an eye out for updates.