How often does your truck regen while towing?? We are currently about 2/3 finished our 2000km trip and this friggin thinghas been running regens just about every tank of fuel. I just had it start to try regen for the second time in the last 250km. Our travel trailer weighs about 7000lbs and we are towing through northern B.C and into Alberta. We are getting about 7 to 8 mpg and I'm about ready to burn this ##^^$%@#$%#&$$E&^$E. I want my old 7.3 back so I can transplant it into this truck. I can't see why there would be any soot in the exhaust after the workout it has been getting. There has got to be something wrong with this POS. I've just about had it with this truck, I used to love diesels but this has got me looking for a gas engine again.