2012 3500 mega cab 6.7 HO Auto s&b cold air ...dpf back 5" ....bully dog gt tuner...1st regent was @ 7,800 truck has 21,345 miles on it( NOTE tuner was installed @ 21k just to rule that out)
And hasn't regent since...I do Alote of high way driving speeds around 65-80 mph most of the time
No CEL truck runs fine...... ??? I got is there any way to
See what the filter is at .1/2 full so on ?? Or is there any way to
Do a manual regent? Figure I'd throw it out there

 

See what the filter is at .1/2/ (not that i'm aware of)
Or is there any way to Do a manual regen? (on the big rigs yes, but not on the pick up trucks, I believe you would need a certain program in your laptop to start a dpf regen)