The problem with the dodge rams is the gas tanks are small. When I looked at them a few years back you had to pay almost a grand more for a gas tank that was still small.
The 1500 are like 26 gallons and there is an option for 33 gallons which sucks. The EPA gas mileage ratings are a joke and if you have added weight or are pulling a boat or a trailer that will be significantly cut down.
Though I worry about this truck towing capacity. I just don't think a turbo charged four can be strong enough. Besides if it has the horsepower and torque they are saying then the engine is probably high compression and will require premium gas.