The 2016 Chevrolet Colorado and GMC Canyon rear-wheel-drive pickups powered by the 2.8L Duramax turbo-diesel have achieved fuel economy ratings of 31 mpg on the highway, making them the most fuel efficient pickups on the market.
The U.S. Environmental Protection Agency also rated the rear-wheel trucks at 22 mpg in city driving and 25 mpg in combined driving cycles. The trucks can reach a maximum highway range of 651 miles with a 21-gallon tank.
The ratings would exceed the Ram 1500 EcoDiesel HFE, which has been rated to achieve 29 mpg highway, 21 mpg city, and 24 mpg combined.
The four-wheel Colorado and Canyon models should achieve 20 mpg on the highway, 20 mpg in the city, and 23 mpg combined.