As the time for me to purchase my first diesel truck inches closer and closer I find myself surrounded by options and deals. I am very curious about people's difference of opinions on which will out perform and last longest. I am very familiar with Cummins and fairly familiar with Powerstroke, but not very familiar with Duramax. As of right now I am very sure Cummins will out perform in every category, but is also quite a bit more expensive. Keep in mind I will be buying a used truck, probably around the 2000 year. Please inform me on anything you know. Even horsepower differences. Thank you!