2024 Gmc 2024 Duramax Fuel Mileage. Looking at a new 2024 at4 and just curious if the 10 speed transmission helps with mpg. I kept it on cruise control,.
Edmunds also has gmc sierra 1500 diesel pricing, mpg, specs, pictures, safety features, consumer reviews. Looking at a new 2024 at4 and just curious if the 10 speed transmission helps with mpg.
