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ICCT working paper highlights benefits of current and emerging light-duty diesel technology; “promising pathway for compliance”

Green Car Congress

Diesel vehicles have had a rough time penetrating the US light-duty vehicle market, reflecting outdated negative perceptions, higher fuel prices for diesel than for gasoline, the cost of complying with stringent US emission standards, and rapidly improving gasoline engines. —Isenstadt and German (2017). Background.

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EPA proposes Tier 3 standards for gasoline sulfur content and vehicle emissions; harmonized with California LEV III

Green Car Congress

The US Environmental Protection Agency (EPA) proposed long-anticipated Tier 3 standards for gasoline sulfur content; evaporative emissions; and tailpipe emissions from all light-duty vehicles (LDVs, or passenger cars), light-duty trucks (LDT1s, LDT2s, LDT3s, and LDT4s) and Medium-Duty Passenger Vehicles (or MDPVs). Vehicle emissions.

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EPA finalizes Tier 3 fuel and emissions standards

Green Car Congress

The US Environmental Protection Agency (EPA) finalized its Tier 3 emission standards for gasoline sulfur content; evaporative emissions; and tailpipe emissions from passenger cars, light-duty trucks, medium-duty passenger vehicles, and some heavy-duty vehicles. The standards differ by vehicle class and test cycle. Earlier post.).

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Consumer Federation analysis of polling data and tech pricing finds consumer demands aligned with proposed MY 2017-2025 CAFE and GHG regulations for light-duty vehicles

Green Car Congress

A new analysis from the Consumer Federation of America (CFA) of consumer polling data finds that the proposed MY 2017-2025 passenger vehicle fuel economy (CAFE) and greenhouse gas (GHG) emissions standards to be finalized this summer ( earlier post ) align with consumer demands and needs. mpg US (5.87 L/100km) in model year 2021, and 49.6

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Flash Drive: 2023 Kia Niro Hybrid

Clean Fleet Report

The second generation 2023 Kia Niro Hybrid continues what Kia started in 2017 when the Niro Hybrid debuted. The 2023 Kia Niro hybrid is the class leader in fuel economy. The roof tails-off to an integrated spoiler over the rear hatch window that incorporates the LED high brake light. First Drive: 2017 Kia Niro Hybrid.

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UCSD, South 8 team report improved liquefied-gas electrolytes for Li-metal batteries

Green Car Congress

Improvements to a class of battery electrolyte first introduced in 2017—liquefied gas electrolytes—could pave the way to replacing the graphite anode with a lithium-metal anode. In lithium-metal half-cell tests, the team reports that the anode’s cycling efficiency (Coulombic efficiency) was 99.6% This is up from the 97.5%

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How to make heavy-duty electric trucks work in practice

Charged EVs

Fleets tested Volvo VNR Electric Class 8 tractors for three years: Here’s what they learned. Requirements for more aggressive emission after-treatment and the hardware to achieve that add cost and complexity for fleet operators. The time and cost of installing the needed charging infrastructure for electric trucks can vary enormously.

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