True, mileage is not so hot. The computer on the truck says that I am getting about 12-15mpg no matter what is behind the truck. I do have a small lift and went to 35"X12.50" tires which sucks up some fuel, and my speedo is off by about 5-10%, so I probably get a little better mileage than that. Not what I was expecting though. I really need to manually figure my mileage and recalibrate the speedo so I know how it is doing. Overall, I'm very happy with the truck. Next time I will get a 6-speed manual tranny -- better mileage and more control.

As far as coolant in the oil, no problem here and I have not heard of that problem.

For you Dodge guys, I heard that installing better quality aftermarket fuel injectors can make a significant difference in power and mileage. Not sure if it is true, but rumor has it that factory injectors are pretty poor. You may want to check into it.