Highway MPG Gain Minimal For 2105 GM Pickups With The 6.2L
Usually pickup manufacturers are quick to point out the EPA fuel economy numbers of their newest models.
But GM was silent on the new numbers for the 2015 Silverado/Sierras equipped with the 6.2L V-8 mated to the new eight-speed automatic.
The reason might be the 2015 models are only getting 1mpg better city and highway numbers than the 2014 with the six-speed automatic.
But when the EPA does the final analysis, the fuel economy difference between old and new is a wash: We compared like model 4x4s and found both have a combined mpg of 17.