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EIA: trends in downsized engine design leading to increased demand for higher-octane gasoline

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in August and September 2015—the highest share in more than a decade, according to data from the US Energy Information Administration (EIA). Energy Information Administration, Prime Supplier Sales Report. One significant trend is engine downsizing coupled with turbocharging. Earlier post , earlier post , earlier post.).

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Ford to bring 20 new engines and transmissions to China and improve fleet fuel economy by more than 20% by 2015; producing the new 1.0L EcoBoost in China

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Utilizing technologies such as turbocharging, direct injection, twin independent variable camshaft timing (Ti-VCT) and six-speed transmissions, the upgraded powertrain portfolio will deliver more than 20% in fuel economy improvement to Ford’s passenger vehicle fleet in China by 2015 while reducing tailpipe carbon dioxide emissions by 20%.

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New Volkswagen Polo BlueGT with cylinder deactivation offers gasoline engine fuel economy of up to 52 mpg US

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This combination of efficiency and dynamic performance is enabled by the systematic interplay of ACT, downsizing (reduced engine displacement plus direct injection and charging) and BlueMotion Technology (Stop/Start system, battery regeneration). TSI of the Polo BlueGT, an exhaust camshaft adjuster is added.

MPG 257
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Ricardo Launches Consortium to Evaluate Lubricant Challenges of Future Low Carbon Engine Technologies

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The work of the consortium will be structured into a series of modules, the first of which will focus on the effect of downsized light duty gasoline and diesel engine technologies on lubricant soot levels and engine wear. Tags: Fuel Efficiency Lubricating Oils. The drive towards thinner, lower viscosity lubricants for reduced friction.

Engine 150
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Ford study suggests GDI engines can meet coming California and US PM emissions standards over 150k miles; more work to be done

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Homogeneous GDI provides fuel efficiency benefits from charge air cooling, more facile turbocharging, and the downsizing that these permit. Such information is needed to develop emissions inventories and understand environmental impacts. Schematic diagram of test vehicle engine & exhaust system and PM sampling systems.

Standards 246
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Lexus NX compact utility arrives in North America

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liter turbocharged gasoline engine has a combination water-cooled cylinder head, integrated exhaust manifold and twin-scroll turbocharger. liter turbocharged port and direct-injection engine uses an advanced valve control system to switch between Atkinson cycle and Otto cycle operation to optimize performance and fuel efficiency.

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Nissan unveils 2013 Altima Sedan; 38 mpg highway

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liter engine option has a targeted fuel economy of 27 mpg city / 38 mpg highway / 31 mpg combined (8.7, It now includes variable valve timing on both exhaust and intake camshafts, and the new intake system opens the valves at a higher rpm to help keep the torque curve flat. The 2013 Altima equipped with the 4-cylinder, 2.5-liter

MPG 230