EPA Certifies Best-In-Class Fuel Economy For GMC Sierra and Chevrolet Silverado V-6, Sorta

By | June 19, 2013
General Motors has been bragging big about its redesigned full-sized trucks, the 2014 Chevrolet Silverado and GMC Sierra. Now, the numbers are starting to back up the boasts. The new 4.3-liter EcoTec3 V-6 engine will be the most capable standard V-6 engine in any full-size pickup truck, and will lead the segment in city fuel economy, at least, in one category. The new EcoTec3 engine will match Ram's HFE's 18 mpg city; in 4x4 models, Silverado and Sierra models with the V-6 will achieve 17 mpg city, which is where GM can boast "best in the segment." Highway mpg for the pair is EPA-estimated at 22 for the 4x4 models, while rear-wheel drive Sierra and Silverado models will get 24 mpg, numbers that are highly competitive in this segment. The EcoTec3 engine features direct fuel injection, Active Fuel Management, and continuously variable valve timing. It also boasts a weight-saving aluminum block and cylinder heads to reduce mass for additional energy savings.
Towing and payload ratings for V-6 equipped trucks increase compared to the 2013 models when using this engine, and both vehicles can tow up to 7,200 pounds and carry a payload of 2,108 pounds. Jeff Luke, executive chief engineer, said "Budget-conscious customers often buy V-6 pickups to do real work, and the 2014 Silverado with the 4.3-liter EcoTec3 V-6 will combine unmatched capability and excellent fuel economy with surprising levels of refinement." Source: General Motors