Road Test: 2021 GMC Sierra 1500 Duramax 4WD Crew Cab AT4 CarbonPro
Clean Fleet Report
MARCH 30, 2021
But maybe since the predominant vehicles on the road these days are midsize to large SUVs, a big truck really isn’t so big. Power and Torque and Fuel Sipping. Fuel economy for the 3.0-liter liter Duramax turbodiesel is EPA rated at 22 mpg city/26 highway/24 combined. News: Pickup Trucks Make Big Power/MPG Moves.
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