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EIA: fuel economy improvements bring diminishing returns in fuel savings

Green Car Congress

Improving fuel economy exhibits diminishing returns in fuel savings, according to a brief analysis by the US Energy Information Administration (EIA). Similarly, the fuel and cost savings of improving fuel economy from 12 mpg to 15 mpg are the same as increasing from 30 mpg to 60 mpg.

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Mazda announces SKYACTIV-X: gasoline Spark Controlled Compression Ignition

Green Car Congress

Mazda Motor Corporation announced “Sustainable Zoom-Zoom 2030,” a new long-term vision for technology development that looks ahead to the year 2030. As part of the new technology to achieve this vision, the company disclosed plans to introduce a next-generation gasoline engine called SKYACTIV-X in 2019. Earlier post.). Earlier post.).

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Final US mpg rules through 2031 go easy on gas trucks, SUVs

Baua Electric

The federal government on Friday revealed vehicle efficiency standards for 2027-2031 that improve the fleet fuel efficiency of new cars and trucks—slightly. After that three-year phase-in, starting in 2027, EVs will only count like a 120-mpg gasoline model, much lowering the number of low-mpg models that each EV enables.

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Hyundai Motor Group, Aramco and KAUST collaborate on new e-fuel for novel combustion system

Green Car Congress

Hyundai Motor Group will collaborate with the Saudi Arabian Oil Company (Aramco) and King Abdullah University of Science and Technology (KAUST) jointly to research and develop an advanced fuel for an ultra lean-burn, spark-ignition engine that aims to lower the overall carbon dioxide emissions of a vehicle.

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Cummins ATLAS light-duty diesel surpasses fuel economy targets, with criteria emissions lower than Tier 2/Bin 2

Green Car Congress

The Cummins team not only surpassed all fuel-economy targets, but also achieved criteria emissions lower than the stringent Tier 2/Bin 2 levels. The demonstration vehicle, provided by Nissan North America, is a 2010 Nissan Titan originally equipped with a gasoline V8 engine. Test cycle fuel economy (mpg).

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EIA: trends in downsized engine design leading to increased demand for higher-octane gasoline

Green Car Congress

Since 2013, the share of premium gasoline in total motor gasoline sales in the US has steadily increased to 11.3% Further, there is increasing interest among stakeholders in exploring the benefits of higher octane fuels that would lead to higher compression ratios which would lead to more efficient engines and reduced fuel consumption.

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Will Cheap Gas, Soaring SUV Sales Sink Fuel-Economy Goals?

Green Car Reports

Corporate Average Fuel Economy (CAFE) standards require carmakers to achieve a fleet average of 54.5 Hits New All-Time High; Gasoline. emissions regulations are forcing carmakers to make their products more efficient over the next decade. mpg by 2025. That's equivalent to roughly 40 mpg on the window sticker.