I wasn't entirely sure myself, but a member here has quoted it to be a mileage counter only:
http://www.ecodieselram.com/forum/threads/ecodiesel-oil-change-intervals.35/#post-4010
You can have the EGR disabled inside the engine computer with tuning. However, remember any kind of tuning *CAN* void your warranty if any serious problem comes up and the dealer snoops around in the ECM.
The EGR is part of the emissions system on the EcoDiesel (actually any modern diesel...
Go here: http://www.dodge.com/webselfservice/dodge/index.html
Click the link on the left corner called "Equipment Listing", then input your VIN #. That should show what ratio you have.
Thanks for the pictures Shawn..
We all need to come together as one to support each other. That will benefit us more than having battles on forums. I like you all, and I'm not one to battle online.. so let's just move on and enjoy each other. :)