2027 GMC Sierra 1500: Diesel EPA MPG gap with Silverado could cost you more

[testerdahl]

2027 GMC Sierra EPA ratings are posted, and some diesel figures differ from Silverado. Compare 2WD, 4WD, mud-terrain and AT4X mpg before buying. (read full article...)

 

[TheDo114]

I think they are just being more honest. I find that the mpg rating that GM put out are always pessimistic compare to other brands.

 

[testerdahl]

I think they are just being more honest. I find that the mpg rating that GM put out are always pessimistic compare to other brands.

Interesting thought. I just find it odd that every new Silverado 1500 launch I've been a part of, the fuel economy gets worse.