I'm looking at buying an 05-07 dodge 5.9 cummings 2500 4x4 automatic pickup. Just wondering if anyone has any experience with this pickup. I heard the 5.9 was a better motor than the 6.7. Looking for input on mpg and performance such as off road and how well it will do in pulling loads. I have heard a lot of the 5.9 motors will get around 22 mpg on the highway. Any input will be appreciated. Thanks.