GM Reveals Fuel Economy for 2014 Chevrolet Silverado and GMC Sierra's 4.3 ... - Car and Driver (blog)

The new V-6 engine cranks out 285 horsepower and 305 lb-ft of torque, up a substantial 90 horsepower and 45 lb-ft from last year’s 4. 3-liter V-6. Fuel economy improves by 3 mpg in the city and 4 mpg on the highway for both rear-wheel- and... Up against the competition, however, despite all of this technology, the Silverado and the Sierra are still in a close race with Ford and Ram. rear-wheel-drive models are rated at 17/23 (down 1 mpg in both city and highway versus the GM twins) and four-wheel-drive versions get 16/21 (down by 1 mpg in both cycles). Rear-wheel-drive versions get 18/25 (matching the Silverado and Sierra in the city and bettering them by 1 mpg on the highway). all-wheel-drive models get 16/23 (down by 1 mpg in the city but up by 1 mpg on the highway). First Drive: 2014 Chevrolet Silverado 1500 First Drive: 2014 GMC Sierra 1500 Instrumented Test: 2014 Chevrolet Silverado 1500 5. 3L 4×4 Crew Cab While fuel economy may be too close of a race to call once in the real world, these are work trucks,... Source: blog.caranddriver.com