Does anyone know what improvements/changes Dodge has made to the particulate filter/exhaust system on the 2011 or 2012 3/4 tons.

Is it true there is now a warning light like the oil change light when the particulate filter is starting to plug up?

I also heard they have changed the particulate filter so is not as fine a filter allowing alittle more to pass thru???

Does driving the truck on the freeway for 25 miles at 55 + mph really clean out the particulate filter???

Any feedback will help. I am consider buying a new truck.

 

they changed the way it is cleaned they use a liqid call uriea or however you spell it it doesnt burn out the filter anymore as far as i have found out

 

The dealer told me the 2500 and 3500 still have the particulate filter. But they are using the oil like Chev and Ford in the 4500 and larger trucks.