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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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EPA: GHG emissions standards for cars and light trucks should be revised; joint process with NHTSA (updated with more reactions)

Green Car Congress

Administrator Pruitt also announced the start of a joint process with the National Highway Traffic Safety Administration (NHTSA) to develop a notice and comment rulemaking to set revised GHG emissions standards and Corporate Average Fuel Economy (CAFE) standards. The Obama Administration’s determination was wrong.

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Tech: New Technology Reduces Diesel Emissions

Clean Fleet Report

According to dozens of automotive story headlines, the internal combustion engine, running on gasoline or diesel, is dead or dying as customers, auto companies and investors flock to electric powertrains. Cummins and Tula Announce Tests Validating Reductions. The Test Procedures.

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13 environmental groups urge USPS to select plug-ins for next-generation delivery vehicles

Green Car Congress

The winner of the contract will be announced in early 2018, with deployment likely to begin in Q1 2020. Additionally, testing of the vehicles’ durability, components and fuel economy will be conducted by engineers at third-party laboratories. Electric Auto Association. Sierra Club. Environment America.

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EPA, DOT open public comment period on reconsideration of GHG Standards for Cars and Light Trucks

Green Car Congress

This requires EPA to determine, no later than 1 April 2018, whether the 2022-2025 standards determined by the previous administration are appropriate.  The Final Determination is the last step in a Midterm Evaluation process and must be completed by 1 April 2018. —Shannon Baker-Branstetter, policy counsel for Consumers Union.

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