GM Reveals “Fuel-Saving” Chevy Silverado & Tahoe and GMC Sierra & Yukon XFE Models

In an attempt to staunch plummeting sales of large pick-up trucks and SUVs, GM has announced the release of the XFE versions of the 2009 Chevy Silverado, Chevy Tahoe, GMC Sierra and GMC Yukon. XFE stands for “Xtra Fuel Economy” and what it means is that GM has fine tweaked these vehicles to deliver a 5% increase in EPA-estimated highway fuel economy and more than 7% improved mileage in city