I used to be somewhat pleased with my Durango. However, I just had the engine blow on me. The dealer has told me that I did not take care and maintain my truck. That's a load of crap, I had the oil and filter changed every 3-6,000 miles. Dunno, might be wrong, but I'm thinking this engine sludge issue might have to do with the condensate in the oil filler neck that they covered up with the baffle in the 4.7L engine. I have found others on the Internet with the same issue. There is a class action lawsuit regarding this issue. Looking for comments and an explanation.