3. (Tie) Chevrolet Colorado/GMC Canyon 3.7L 2WD: 19 mpg
The only inline-5 cylinder engine on the list is also among one of the most fuel efficient. The Colorado/Canyon’s 3.7L gets 242hp and 242 lb-ft torque all the while bringing back a combined 19mpg. That’s not bad for a the highly optionable trucks that starts at $26,160. The Chevy/GMC numbers are quite nice on the highway across the board here: 17 mpg in the city, and 23 mpg on the highway.