New engine gives Silverado, Sierra unsurpassed city fuel economy

The all-new 4.3L EcoTec3 V-6 powering the Chevrolet Silverado and GMC Sierra will be the most capable standard V-6 in any full-size pickup truck – leading the segment in city fuel economy and helping customers save money through a host of fuel-saving technologies. EcoTec3 engine technology matches Ram HFE’s 18 mpg city, while 4x4 Silverado and Sierra models achieve 17 mpg city, the best of any full-size pickup. EPA highway estimates are highly competitive: 22 mpg for 4x4 versions, and 24 mpg for 2WD models. The 4.3L V-6 also help Silverado and Sierra will offer the highest-available payload rating of 2,108 pounds and the highest available towing rating of 7,200 pounds. Founded in 1911 in Detroit, Chevrolet is now one of the world's largest car brands, doing business in more than 140 countries and selling more than 4.5 million cars and trucks a year.  Chevrolet provides customers with fuel-efficient vehicles that feature spirited performance, expressive design, and high quality. More information on Chevrolet models can be found at www.chevrolet.com. GMC has manufactured trucks since 1902, and is one of the industry's healthiest brands. Innovation and engineering excellence is built into all GMC vehicles and the brand is evolving to offer more fuel-efficient trucks and crossovers, including the Terrain small SUV and Acadia crossover.  GMC is the only manufacturer to offer three full-size hybrid trucks with the Yukon, Yukon Denali SUVs and the Sierra pickup. The Sierra Heavy Duty pickups are the most capable and powerful trucks in the market. Details on all GMC models are available at http://www.gmc.com/, on Twitter at @thisisgmc or at http://www.facebook.com/gmc. Source: media.gm