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

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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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Responsible Battery Coalition and U Michigan launch study to compare electric and gas vehicle lifetime costs

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The Responsible Battery Coalition, in partnership with the University of Michigan Center for Sustainable Systems, launched a comprehensive research project to compare the total cost of ownership of gas and electric vehicles (EVs). Gregory Keoleian, Director of the Center for Sustainable Systems at the University of Michigan.

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UMTRI study finds US diesel vehicles generally have lower total cost of ownership than gasoline vehicles

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TCO for selected gas and diesel vehicles over a 3 year timeframe. Diesel vehicles generally saved owners between $2,000 to $6,000 in total ownership costs during a three to five year period when compared to similar gasoline vehicles, according to data compiled by the University of Michigan Transportation Research Institute (UMTRI).

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UMTRI study finds total cost of ownership of diesels in US often much less than gasoline counterparts

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Though there are some exceptions to these positive results for some of the diesel versions of vehicles from a total-cost-of-ownership perspective, the overall direction of the results supports the idea that diesel vehicles are competitive within the U.S. —Bruce Belzowski.

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Cummins developing 15-liter on-highway natural gas engine; latest EcoFit technologies at MATS

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has begun development of a 15-liter heavy-duty, spark-ignited natural gas engine to meet demand for on-highway applications. As natural gas production grows in North America and the fuel becomes more readily available, Cummins believes that there is a strong market for engines powered by an alternative to diesel fuel.

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ZeroAvia unveils hydrogen fuel cell powertrain for aviation

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In the latest effort to make aviation sustainable and reduce greenhouse gas emissions, ZeroAvia announced advancements in developing a hydrogen-fueled electric powertrain. The solution aims to deliver the same performance as a conventional aircraft engine, and much lower operating costs.

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President Biden calls on Congress, States for fuel tax holiday; increase in refinery capacity

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President Biden called on Congress to suspend the federal gas tax for the next 90 days, through the busy summer driving season—18 cents per gallon for gasoline and 24 cents per gallon for diesel. He also called on states to suspend their state gas taxes as well or to find other ways to deliver some relief.

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