Thanks for the write up. I am looking at buying a truck next summer. I was looking at getting a used 6.4 diesel. But for the same money I could get a new 6.2 gas. I currently drive a durrango and only get 6-8 mpg towing my 7k tt so I was leaning diesel along with more torque. It sounds like the 6.2 is getting just about the same mileage as the 6.4. With less maintence costs. I think I may have to look hard at the 6.2 and 4.30 gears. It was nice to hear what a 6.4 owner had to say about the 6.2! Thanks