The 2015 Dodge Ram 3500 Diesel Truck gets around 11 miles per gallon in the city and 17 miles per gallon on the highway. The exact fuel economy is not tested by the Environmental Protection Agency, so these values are estimated by AutoTrader.
The 2015 Dodge Ram 3500 comes with an optional 6.7-liter Cummins turbo-diesel in-line six-cyllinder engine. This engine has up to 370 horsepower and 865 pound-feet of torque with a six-speed automatic transmission, or 350 horsepower and 660 pound-feet of torque with a manual transmission. The vehicle is estimated to get around 11 mpg city driving and 17 mpg highway driving. Most drivers report an average of 15 mpg.