I am curently running a GM 6.2 in my truck but later want to upragde to a Cummins. I wanted to see what you guys thought about the new diesels. Ive heard the Duramax and powertoke were only made to go 150K whiel the Cummins can push 500K with routien maintance. Cummins is a heavy duty power source and is used in all sorts of applications and has been prove to work and to last. Also with it being inline it is easier to work on. I dont know how they compare in proformance though. What is your opion?