I hear what you are saying, but, i dont know what you are comparing to but mpg for me it is far better than my 14 5.3. The 3.0 really shines on highway at 60-65 mph. I agree the passing power isnt there but the 270hp told me that. I tow a small trailer pretty often and that is where it shines for me, gear searching is greatly reduced and the powertrain is far smoother imo than the gassers. Would i be happy with more top end power yes, but i knew what i was getting with the diesel. Im happy with it.