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Study suggests high-mileage light-duty fleets contribute higher emissions and emissions share than expected

Green Car Congress

A study by researchers from the University of Denver and the University of Puget Sound indicates that high-mileage light-duty fleets contribute higher emissions and emissions share than expected based on their actual numbers in the fleet. Most emission inventory calculations use a computer model to estimate the fleet’s emissions. 6b00717.

Emissions 150
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Road Test: 2023 Lexus UX 250h Premium FWD

Clean Fleet Report

The 2023 UX 250h runs on 87 octane and is EPA rated at 43 mpg city/41 highway/42 combined. The arrowhead-shaped triple beam LED headlights, fog, daytime running and cornering lights frame the grille, which sports the Lexus “L” badge in blue, signifying this Lexus is electrified.

Lexus 75
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Road Test: 2024 Genesis G70 3.3T RWD Sport Prestige

Clean Fleet Report

Running on unleaded premium, the EPA has rated the fuel economy at 18 mpg city/27 highway/21 combined. Fuel economy numbers reported by Clean Fleet Report are non-scientific and represent the reviewer’s driving experience using the dash gauge computer. liter V6 that pumped-out 365 horsepower and 376 pound-feet of torque.

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Road Test: 2022 Hyundai Sonata Hybrid Limited

Clean Fleet Report

The EPA estimates fuel economy to be 45 mpg city/51 highway/47 combined, numbers that make Clean Fleet Report smile, as we are happy to drive a car that is a serious fuel sipper. Fuel economy numbers reported by Clean Fleet Report are non-scientific and represent the reviewer’s driving experience using the dash gauge computer.

Hyundai 81
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Road Test: 2023 Volkswagen Taos SEL 4Motion

Clean Fleet Report

Fuel economy is EPA-rated at 28 mpg city/36 highway/31 combined for the FWD Taos, with the 4Motion rated at 25/32/28. The rack and pinion electric power steering was too light for our liking, even though it was progressive, tightening (or becomes heavier) on the open road, While lighter in town. Very European.

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Road Test: 2023 Genesis G90 Performance

Clean Fleet Report

Running on premium, the EPA rates fuel economy at 17 mpg city/24/highway/20 combined. The rear takes the two-line LED tail light design further as it wraps from fender-to-fender across the trunk. In 217 miles driving mostly on Southern California freeways, we averaged 25.3 Control from the back seat Thedash has dual 12.3-inch

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Ricardo report finds hybrid buses have higher regulated emission intensities than conventional buses; need for whole vehicle testing

Green Car Congress

Example: any technology resulting in periods of engine shutdown in combination with aftertreatment systems relying on achievement/maintenance of light-off temperature. There are a number of reasons why this may not happen in practice.

Emissions 231