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2015 VW Jetta TDI: a more refined, powerful and efficient diesel within a nicely redesigned model line

Green Car Congress

TDI Clean Diesel EA288 engine ( earlier post ) with an EPA-rated highway fuel economy rating of 46 mpg with the manual transmission (45 mpg automatic). It is one of the most fuel-efficient engines in its class, and already conforms to the LEV3 emissions standard in the US. Fuel economy improvement. 2014 Jetta TDI.

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U Toronto study measures GDI emissions in urban near-road environment

Green Car Congress

One response by automakers to increasingly stringent fuel economy requirements is the use of GDI engines, which offer up to a 25% improvement in fuel economy compared to port fuel injection (PFI) engines. —Zimmerman et al. Naomi Zimmerman, Jonathan M.

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SwRI D-EGR gasoline demo vehicle delivers diesel efficiency at lower cost; potential for LEV III/Tier 3 emissions

Green Car Congress

improvement in city fuel economy (24.5 Southwest Research Institute (SwRI) announced preliminary test results of its Dedicated-Exhaust Gas Recirculation (D-EGR) demonstration vehicle ( earlier post ) at the SAE 2014 World Congress in Detroit. D-EGR brake specific fuel consumption (BSFC) at 2000 rpm 2 bar BMEP dropped 14.3%

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Audi banking on Gen 2 3.0L TDI diesel for US sales; calls for a “fair shot” for diesel

Green Car Congress

Do they receive HOV access for their improved fuel economy and ultra low emissions? In fact in 6 of the states, diesel fuel is penalized with additional state taxes. So diesel fuel gets taxed twice or penalized twice at the federal and state level. Changes in the exhaust manifolds and turbo from Gen 1 to Gen 2.

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New Ford Escape launching with two new EcoBoost engines with standard Auto Start-Stop

Green Car Congress

The start-stop technology senses when the vehicle is sitting idle and shuts off the engine to conserve fuel, resulting in a 4 percent to 6 percent improvement in fuel economy in stop-and-go traffic. liter EcoBoost with integrated exhaust manifold is projected to deliver horsepower and torque output comparable to the 1.6-liter—an

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Road Test: 2022 Kia K5 GT 2.5L

Clean Fleet Report

There are four driver-selectable drive modes of Normal, Custom, Sport and Sport+ that adjust the engine, steering and transmission responses to maximize fuel economy or performance. Fuel economy numbers reported by Clean Fleet Report are non-scientific and represent the reviewer’s driving experience using the dash gauge computer.

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Jaguar adds two new smaller forced induction gasoline engines to 2013 XF and XJ lineup; 8-speed automatic and start-stop

Green Car Congress

The supercharged V8 gasoline engine has fuel economy gains of up to 11% with emissions reductions of more than 8%, while the naturally-aspirated V8 sees economy improvements of up to 8% with emissions down by more than 6%. A green ‘ECO’ symbol on the dashboard lights up when the engine is shut down by the system.

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