* EPA-estimated fuel economy: 23 city/33 highway MPG
* Engine: 3.0-liter EcoDiesel V6
* Horsepower: 260 hp
* Torque: 480 lb-ft
* Towing capacity: Up to 12,560 lbs.
The Ram 1500 EcoDiesel is the most fuel-efficient truck on the market. It gets an EPA-estimated 23 MPG in the city and 33 MPG on the highway. This is thanks to its 3.0-liter EcoDiesel V6 engine, which produces 260 horsepower and 480 pound-feet of torque. The Ram 1500 EcoDiesel can also tow up to 12,560 pounds, making it a capable workhorse.
Other fuel-efficient trucks include:
* Ford F-150 PowerBoost Hybrid: 25 city/26 highway MPG
* Chevrolet Silverado 1500 Turbo-Diesel: 23 city/29 highway MPG
* GMC Sierra 1500 Turbo-Diesel: 23 city/29 highway MPG
* Toyota Tundra Hybrid: 22 city/24 highway MPG
