First off i love reading diesel power, i go to school for heavy-duty mechanic and enjoy the articles.
But there is way too much crap on show trucks and high dollar build-ups that no normal joe could ever afford, there is way too many advertisements, the tech articles are not thourough enough, you need to have more on a larger variety of diesel powered vehicles/boats/bikes/tractors because reading about the same crap every month gets boring fast. There needs to be more articles on engine swaps into older trucks and how to get increased fuel economy for these high priced fuel days. My interest in the mag is dwindling quickly, please revamp it to regain the readers attention. Oh ya nobody likes lookin at lowrider diesel trucks they  are useless and kind of "fruity".