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2023 GMC Sierra AT4X Review: Understated

The Truth About Cars

I don’t know that I personally have a need for something as large as the current batch of full-size half-ton trucks like this 2023 GMC Sierra AT4X. GMC has done a nice job updating the interior of the Sierra, too. Fuel economy suffers, with the 15mpg EPA combined rating seeming about right.

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GM: new Sierra 5.3L V-8 EcoTec3 highway fuel economy tops Ford EcoBoost V-6

Green Car Congress

V-8 EcoTec3 AFM VVT DI (L83) for Chevrolet Silverado and GMC Sierra. The 2014 GMC Sierra 1500 full-size pickup truck features a new 5.3L The 2014 GMC Sierra 1500 full-size pickup truck features a new 5.3L In addition to highway fuel economy estimates that are 2 mpg higher than a 2013 Ford V8 pickup equipped with a 5.0L

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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. Power and Torque and Fuel Sipping. recently drove the 2021 GMC Sierra 1500 4WD Crew Cab AT4, powered by a 3.0-liter Fuel economy for the 3.0-liter Smooth, Powerful Diesel Performance.

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2015 Chevrolet and GMC pickups, SUVs to offer eight-speed transmission with EcoTec3 V-8

Green Car Congress

Chevrolet and GMC have confirmed a new eight-speed automatic transmission will be standard on 2015 Chevrolet Silverado, GMC Sierra and GMC Yukon Denali/Yukon XL Denali models equipped with the 6.2L As with other EcoTec3 engines, it seamlessly switches to four-cylinder operation under lighter loads to improve fuel economy.

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XL Fleet offering hybrid electric upfit for Ram 2500 and 3500 heavy-duty pickups

Green Car Congress

With the Ram 2500 and 3500 heavy duty pickup models added to its hybrid product line, XL Fleet now electrifies four of the US’ top-selling pickup brands, including Ford F-series, Chevrolet Silverado, Ram and GMC Sierra trucks. The XLH system includes XL Fleet’s standard 3-year, 75,000-mile warranty, with extended warranty options available.

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Study Assesses Product Attribute Trade-offs and Technological Progress; Meeting Proposed Obama Fuel Economy Standards Will Require Downsizing and Change in Fleet Mix

Green Car Congress

Changes in the attributes (clockwise from upper left, weight, power, fuel economy and torque) of the Honda Accord over time as an example of fleet trends in the US. In contrast, fuel economy actually increased by 15% during that period. Knittel, 2009. Click to enlarge. Knittel, 2009.

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GM mid-size pickups EPA-rated at 27 mpg highway, 22 mpg combined

Green Car Congress

The 2015 Chevrolet Colorado and GMC Canyon ( earlier post ) will offer segment-leading highway fuel efficiency for four-cylinder mid-size pickup trucks, according to EPA fuel economy estimates. Colorado and Canyon fuel economy. EPA fuel econ estimates. With the 3.6L Transmission. 200-hp 2.5L

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