Please post if you do a lot of towing on a non-deleted Ecodiesel and have over 100,000 miles on the engine. I do a lot of towing and have hit the 70,000 mile mark, I'm wondering how much soot buildup is inside this engine and what problems I might have in the near future. Any feedback on non-deleted trucks would be appreciated. Just for fun, you get to see what I've been towing. So far, I've towed through 17 states.