- Jul 31, 2009
REPORT: 2010 Chevy Silverado XFE updated to achieve best-in-class 22 mpg highway
General Motors, however, is not content with a tie, and is upping the EPA numbers for its 2010 XFE Silverado and Sierra to 22 mpg on the highway, which just so happens to match the highway figure for the Sierra Hybrid. The combined fuel economy of both GMT900 trucks has also increased from 17 to 18 mpg.
Chevrolet spokesperson Brian Goebel told Pickuptrucks.com that the increased fuel economy is due to several engineering improvements. The XFE model's 5.3-liter V8 now has variable valve timing, optimized shift pattens in its six-speed transmission, and new tweaks for its Active Fuel Management system that enables the truck to run on four cylinders at cruising speeds for longer.