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NREL study finds Class 8 hybrid trucks delivered 13.7% higher fuel economy than conventional diesels in comparable usage

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Laboratory and in-use fuel economy comparison. higher fuel economy than the conventional tractors, resulting in a 12% reduction in fuel costs for the hybrids. higher fuel economy than the conventional tractors, resulting in a 12% reduction in fuel costs for the hybrids. Source: NREL.

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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. l/100 km) figures—i.e.,

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2014 Cascadia Evolution Class 8 rig delivers 10.67 mpg on closed-track demo; 7% better fuel economy than EPA 2010 Cascadia in cross-country tour

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The Freightliner Trucks 2014 Cascadia Evolution—powered only by the newly designed Detroit DD15 engine and featuring enhanced aerodynamic specs—delivered fuel economy of 10.67 mile closed-course track for 1,000 miles nonstop at an average speed of 60 mph, with a GCW of 76,000 lbs. mpg US (22 L.100km)

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Consumer Reports finds Honda Accord hybrid fuel economy “impressive”, but short of EPA 47 mpg rating

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Consumer Reports fuel economy tests found the Honda Accord Hybrid delivered impressive overall fuel-economy of 40 mpg (5.88 We’ve found that the EPA tests often exaggerate the fuel-economy of hybrids. Both vehicles scored near the top of their classes in Consumer Reports testing. Earlier post.).

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Daimler debuts diesel-powered S-class for US market

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Daimler staged the debut of the diesel-powered all-wheel-drive 2012MY S350 BlueTEC 4MATIC at the 2011 North American International Auto Show— the return of the diesel-powered S-Class sedan to the US market. A number of measures minimize the energy needed to turn the extra gears and shafts to help improve overall fuel economy.

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Mercedes-Benz introducing diesel E 300 BlueTEC HYBRID with fuel economy of 56 mpg US; gasoline-engined E 400 HYBRID model to follow

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Mercedes-Benz is introducing the new E 300 BlueTEC HYBRID; the luxury-class diesel hybrid offers fuel consumption of 4.2 The E 300 BlueTEC HYBRID is based on the E 250 CDI, yet has a higher output and approximately 15% lower fuel consumption. E 300 BlueTEC HYBRID Click to enlarge. Earlier post.)

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Mercedes-Benz previews new GLA compact SUV; fuel economy as high as 54.7 mpg in diesel version

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2015 GLA-Class. Mercedes-Benz previewed the new 2015 GLA-Class compact SUV prior to its global debut at the International Motor Show (IAA) in Frankfurt next month. Class and the new CLA Coupé were delivered worldwide (+58.0%). mph), and is able to prevent rear-end collisions at speeds of up to 20 km/h (12.4