The typical gas mileage for a diesel Dodge Ram 3500 is 12 miles-per-gallon for city driving and 18 miles-per-gallon for highway driving. This is the official EPA fuel economy rating for a two-door standard model with a 6.7-liter turbo diesel, six-cylinder engine and a two-wheel drive, six-speed manual transmission.
The 2012 Dodge Ram 3500 has a 350-horsepower engine and a curb weight is 6.311 pounds. It has a payload capacity of 5,190 pounds and a towing capacity of 22,750 pounds. Dodge offered several options for this truck, including four-wheel drive and automatic transmissions, and extended and crew cab configurations. This pickup’s EPA fuel economy rating is identical to the Ford F-350, which has an eight-cylinder, 400-horsepower engine and all-wheel drive transmission.