2014 Chevrolet Silverado and GMC Sierra Use Lighter, Stronger Steel


DETROIT — The 2014 Chevrolet Silverado 1500 and GMC Sierra 1500 have replaced traditional steel with lightweight, high-strength steels for improved capability, safety, and fuel efficiency.

High-strength and ultra-high-strength steels make the Silverado and Sierra’s fully boxed frames and cabs lighter and stronger, helping the trucks deliver the best fuel economy of any V-8 pickup, up to 23 mpg highway. They also have class-leading towing capability of up to 12,000 pounds when equipped with the available 6.2L V-8.

Similarly, making the most of mass also enables Silverados and Sierras equipped with the 4.3L V-6 to tow up to 7,600 pounds, the highest for any standard V-6 in the segment, with EPA highway fuel economy of up to 24 mpg.

“Our customers tell us they want better fuel economy, but only if it doesn’t come at the expense of capability,” said Jeff Luke, executive chief engineer of the Silverado and Sierra. “By using lightweight materials like ultra-high-strength steel and aluminum for key structural parts and components in our new trucks we were able to improve both capability and efficiency.”

According to U.S. Steel Corp., the use of advanced high-strength steels is the fastest-growing trend in auto manufacturing today. Parts made from high-strength steel can be as much as 39 percent lighter than parts made from traditional steel.