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Nissan boosts fuel economy of 2013 Pathfinder SUV by 30%, drops weight by 500 lbs

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2013 Pathfinder. Nissan’s new 2013 Pathfinder SUV—the 4 th generation of the vehicle introduced more than 25 years ago— utilizes a new drivetrain featuring a 3.5-liter Nissan’s new 2013 Pathfinder SUV—the 4 th generation of the vehicle introduced more than 25 years ago— utilizes a new drivetrain featuring a 3.5-liter

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Consumer Reports testing finds many small turbo engines underperforming; fuel economy, acceleration no better than in larger conventional powertrains

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Consumer Reports’ own fuel economy tests of vehicles equipped with small turbocharged engines has found in many cases that the turbocharged cars tested by CR have slower acceleration and no better fuel economy than the models with larger conventional engines, the organization said. Earlier post.).

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Cummins progressing with lightweight downsized T2B2 diesel for pickup; 40% improvement in fuel economy over gasoline V8

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At the US Department of Energy’s (DOE’s) Annual Merit Review meeting in Washington, DC last week, Michael Ruth from Cummins noted that the DOE program target for the project is a fuel economy (CAFE) target of 26 mpg (9.05 Cost of the new engine relative to gasoline baseline. Earlier post.). l/100 km) for a vehicle of that size.

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Chrysler unveils 2013 Ram with array of new systems focused on fuel economy

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2013 Ram 1500 at the New York International Auto Show. Chrysler unveiled the 2013 Ram pickup, featuring an array of fuel-saving systems including a more fuel efficient and more powerful 3.6-liter Specific fuel economy figures are note available yet.) Click to enlarge. liter V-6 powertrain. Click to enlarge.

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ORNL researchers quantify the effect of increasing highway speed on fuel economy

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Huff Fuels, Engines and Emissions Research Center, Oak Ridge National Laboratory. This website, jointly maintained by the US Department of Energy and the US Environmental Protection Agency (EPA), provides information such as official EPA “window label” fuel economy estimates for city, highway, and combined driving for all U.S.-legal

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Cummins/Peterbilt SuperTruck shows 54% improvement in fuel economy, 61% improvement in freight efficiency

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The new SuperTruck achieved a 54% increase in fuel economy. and Peterbilt Motors Company, a division of PACCAR, released test results showing their demonstration SuperTruck tractor-trailer achieved a 54% increase in fuel economy, averaging nearly 10 mpg US (23.5 Sources of increased engine thermal efficiency.

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Update on the ACCESS fuel efficient engine project; simulations find up to 48.9% improvement in fuel economy over baseline

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At the recent 2013 SAE World Congress, engineers from Bosch and AVL presented papers on progress in the ACCESS project, describing the design, combustion development and controls development for a resulting 4-cylinder gasoline turbocharged direct injection (GTDI) engine with part-load HCCI capability. I4 Ecotec engine.