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Road Test: 2021 GMC Sierra 1500 Duramax 4WD Crew Cab AT4 CarbonPro

Clean Fleet Report

The 2021 GMC Sierra 1500 Duramax 4WD Crew Cab AT4 CarbonPro showed-up in my driveway and the neighbors took notice. recently drove the 2021 GMC Sierra 1500 4WD Crew Cab AT4, powered by a 3.0-liter Weighing in at 5,640 pounds, the Sierra 1500 AT4 has a maximum payload of 1,810 pounds and can tow 8,800 pounds. Brains and brawn.

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GM introduces CNG bi-fuel Chevrolet Silverado and GMC Sierra pickups

Green Car Congress

General Motors is introducing compressed natural gas (CNG) bi-fuel versions of the 2013 Chevrolet Silverado and GMC Sierra 2500 HD extended cab pickup trucks. V8 engine that seamlessly transitions between CNG and gasoline fuel systems. With both CNG and gasoline tanks full, the trucks offer a range of more than 650 miles.

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