Wow your getting 200 miles between Re-gen cycles..... I'm lucky if I get 60-75 miles between cycles. My commute is average 45 min 20 min on highway with lights (I hate lights) and 25 min of back roads with only a hand full of lights. I average 45 mph for the trip. This truck, when new use to Re-Gen once a day for about 15- 20 min. Nowwith 10,265 miles on it will re-gen twice a day. If you let it idle more than 3-4 min it goes right into re-gen. If I hit the lights wrong or get stuck at the train tracks it'll re-gen. This thing spends more time in re-gen than anything else. I have an apointment with the dealer to see if something stupid is going on with it tommrrow. The last oil change the lube was loaded with fuel. It has no codes and aside from always going into re-gen runs great. So I'm doubtfull that they will find anything wrong. My use of this truck is so far removed from it being a grocery getter that I can't see how or what these trucks were ment to be used for in order to keep it from re-gening all the time. The people that I have ran intowith the Ford 6. 7 say that they get between 16-19 mpg doing the same work/ driving that I am. And their DEF lasts aroung 1000-1500 miles per gal. The guy that is getting 16mpg has 35" Nitto's with a 6" lift and 4-11 gears. The guys with normal trucks and the 3. 55 or 3. 73 gears do much better. I just can't bring my self to speak ford just yet... ... Been a Dodge man for 25 years now don't want to change but this truck really sucks MPG wise It's over 1/3 more opperating costs from the last 3 that I owned. thats not a small increase!