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Nissan introduces 2014 Pathfinder Hybrid SUV with FF hybrid system; 24% improvement in fuel economy over conventional

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2014 Pathfinder Hybrid. Nissan introduced the 2014 Pathfinder Hybrid at the New York International Auto Show. Fuel economy is estimated at 26 mpg (9.0 Estimated city fuel economy is 25 mpg (9.4 gallon fuel tank, the same as non-hybrid models, driving range is estimated at more than 526 miles (847 km).

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EPA Trends on EVs and PHEVs; beginning of a “measurable and meaningful impact” on new vehicle fuel economy and emissions

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With alternative fuel vehicles now approaching 1% of new vehicle production, however, they are in fact beginning to have a “ measurable and meaningful impact ” on overall new vehicle fuel economy and CO 2 emissions. In the analysis, EPA uses overall fuel economy in mpg equivalent (mpge) and tailpipe CO 2 emission values.

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ORNL study finds best current use of natural gas for cars is efficient production of electricity for EVs

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However, they also noted, high PTW efficiencies and the moderate fuel economies of current compressed natural gas vehicles (CNGVs) make them a viable option as well. If CNG were to be eventually used in hybrids, the advantage of the electric generation/EV option shrinks. —Curran et al.

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2014 Ram 1500 EcoDiesel earns 28 mpg highway; best in segment

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2014 Ram 1500 EcoDiesel. liter V6 EcoDiesel-powered 2014 Ram 1500 pickup ( earlier post ) has earned a 28-mpg (8.4 On the gasoline side, the 2013 Ram 1500 equipped with a 3.6-liter liter Pentastar V-6 gasoline engine earned 25 mpg (9.4 l/100 km) highway, a rating that stands for model-year 2014. Click to enlarge.

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Toyota implements Atkinson cycle in non-hybrid ESTEC engine; up to 38% thermal efficiency and improved fuel economy

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The result of their work, presented in papers this spring at the SAE 2014 World Congress, the Vienna Motor Symposium, and the JSAE Annual Congress, is the new 1.3-liter liter ESTEC (Economy with Superior Thermal Efficient Combustion) in-line 4-cylinder Gasoline Engine (1NR-FKE). 1 and water-cooled EGR. 1 and internal EGR.)

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Enerpulse explains mechanism by which pulsed energy ignition plugs enhance fuel economy

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Enerpulse Technologies said that it has further identified the underlying mechanism by which its its pulsed energy ignition technology improves fuel economy, reduces emission and delivers higher torque in spark ignited (SI) internal combustion (IC) engines. Earlier post.) —Wes Helgeson, senior research engineer.

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GM to introduce strong hybrid version of Malibu; combined fuel economy above 45 mpg; leverages Volt

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Using technology from the 2016 Chevrolet Volt propulsion system ( earlier post ), Malibu Hybrid will offer an estimated combined fuel economy rating exceeding 45 mpg (5.22 The engine also features Chevrolet’s first application of Exhaust Gas Heat Recovery, or EGHR, technology, which uses exhaust heat to warm the engine and cabin.