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Ricardo, Achates Power developing next-gen OP GCI engines for LDVs

Green Car Congress

Ricardo is working in collaboration with Achates Power to develop the next generation of opposed-piston (OP) gasoline compression ignition (GCI) engines for light duty vehicles in a multi-phased project (BERYL), funded by the US Department of Energy (DOE) Advanced Research Projects Agency-Energy (ARPA-E). Earlier post.) Earlier post.)

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ORNL study quantifies fuel economy costs of common driver practices and vehicle alterations

Green Car Congress

Researchers at Oak Ridge National Laboratory (ORNL) have quantified the fuel economy effects of some common driver practices and vehicle accessories or alterations—including underinflated tires, open windows, and rooftop and hitch-mounted cargo. liter four-cylinder engine, also suffered as its fuel economy dipped 22% from 42.5

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Average fuel economy of new vehicles in the US climbed to 23.0 mpg in January

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The average fuel economy of new vehicles sold in the US. mpg US (10.2 mpg from December, according to figures from the University of Michigan Transportation Research Institute (UMTRI). The fuel-economy information was available for 99.8% in January was 23.0 L/100 km), an increase of 0.8

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UMTRI: average sales-weighted fuel economy of purchased new vehicles in US dropped 0.2 mpg in May from April

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The average sales-weighted fuel economy (adjusted EPA window sticker value) of new vehicles purchased in the US dropped 0.2 mpg in May from the level in April to 23.7 mpg US (9.9 The average sales-weighted fuel economy (adjusted EPA window sticker value) of new vehicles purchased in the US dropped 0.2

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Study finds that increased vehicle travel and decreased occupancy have undercut the impact of improving fuel economy over last 40 years

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Sivak found that while the vehicle fuel economy of the entire light-duty fleet improved by 40% (from 13 mpg US to 21.6 mpg US, or from 18.1 l/100km), because of the decrease in vehicle load, the occupant fuel economy only improved by 17% (from 24.8 mpg US to 29.8 mpg US, or 9.5 l/100km to 10.9

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New UMTRI report on US vehicle fuel economy from 1923-2013 suggests need to focus on improving lower tails in each vehicle class

Green Car Congress

In a new report, researchers at the University of Michigan Transportation Research Institute (UMTRI) have calculated the actual, on-road fuel economy for the entire fleet of all vehicles in the US, and for different classes of vehicles, with primary interest in light-duty vehicles (cars, pickup trucks, vans, and SUVs), between 1923 and 2013.

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ICCT: incremental technology can cut vehicle CO2 by half and increase fuel economy >60% through 2030 with ~5% increase in price

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Starting from a baseline 26 mpg (9.04 l/100 km) in 2016, the The ICCT team assessed increased consumer label fuel economy (as opposed to the regulatory test fuel economy) to 35 mpg (6.71 l/100 km) in 2025 and to 42–46 mpg (5.6-5.11 Starting from a baseline 26 mpg (9.04 Advanced engines.