I just bought a 2004 2500HD with the Durmax and Allison transmission and I have been looking around the web and seeing stuff about $3000 injector bills and trucks sitting in the dealership for 6 months. What the hell did I buy? I traded in my 1997 CK1500 which I never had a single problem with. Can you tell me what is the deal with this engine. I just want to tow my 8000 lb. trailer and not be stuck on the side of the road. I have read stuff about secondary fuel filters and all kinds of crap. What do I need to do to have a reliable truck? Can I follow the oil life computer or should I change my oil sooner? What lubes should I use for the engine, trans, and rear end? I always liked Mobile 1 products. What about lube changes during break in for engine, trans, and rear end? I am starting to think I should have stuck with gas.