2016 Chevy Silverado 5.3L vs GMC Sierra 6.2L Drag Race & MPG Mashup Review
( http://www.TFLtruck.com ) 2016 Chevy Silverado 5.3L vs GMC Sierra 6.2 - What's the faster, more fuel efficient and better GM truck engine. Is it the 5.3 Liter V8 or the bigger brother 6.2L V8. In this TFLtruck mashup review we find out by towing