The company i work for bought a 2008 cxu 613 back in May, and we are very pleased with it. The truck is a day cab with the 485 w/13 spd. eaton/fuller, duel pipes, dura brites, chrome bumper, red in color, upgraded interior. The only problem we've had is the EGR valve spread apart and was leaking oil,which the fix was a new EGR valve. The second problem was a vibration going through the gears. The fix for the problem was new shocks and motor mounts (dont' know if this was good or not?), but other than that the truck does not vibrate anymore and it runs awsome. The mp 8 has pletty of power, and the powerleash is great. The truck has 30,000 on it now and gets ran 7 days a week 365 days a year, about 250 miles a day hauling milk. As far as the DPF, if i didn't visually see it on the truck I would never know it is there. Just wanted to give my 2 cents about the new tech. and hopefully the truck continues to run great.