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Audi introducing new “ultra” A4, A5, A6 models; diesels with up to 60 mpg

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liters per 100 kilometers (60 to 51 mpg) and CO 2 emissions of 104 to 119 grams per kilometer (167 to 192 g/mile), the new ultra models from Audi are among the most efficient cars of their segment. A highly efficient SCR system removes NO x from the exhaust, said Audi Head of Powertrain Development, Dr. Stefan Knirsch. mpg) with 4.6

MPG 225
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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
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Mercedes-Benz introduces new Vito mid-size van; up to 41.3 mpg US, new front-wheel drive option

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Emission control comes via exhaust gas recirculation, a diesel particulate filter and an oxidation catalytic converter. The double overhead camshaft operates a total of 16 inlet and exhaust valves and is driven by a combination of gearwheels and a short chain. Mercedes-Benz introduced its new Vito model series for the mid-size van (2.5–3.2

Mercedes 246
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More Details on the Lexus CT 200h Hybrid Powertrain; 42 mpg US Combined

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seconds; its EPA estimated fuel economy rating is 42 mpg US (5.6 Combined with a cooled Exhaust Gas Recirculation (EGR) system, the adoption of the Atkinson Cycle offers significant gains in fuel efficiency and the reduction of emissions. As a result, the exhaust temperature is lower than that of conventional engines.

Lexus 225
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Audi A3 launching with new 4-cylinder engines; cylinder-on-demand, supplementary indirect injection, start-stop and modular efficiency technologies

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The thermal management system ensures that the engine comes up to its operating temperature rapidly after a cold start—this shortens the phase of elevated friction losses due to viscous oil, and the car’s interior warms up faster as well. The oil pump, with its two-stage control, is designed for energy efficiency. liters (0.11

Audi 334
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New Audi S6 and S7 diesel TDI models pair 48V system with electric compressor

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with the EPC working in tandem with the exhaust turbocharger—the full-size S models achieve a constant torque of 700 N·m across an engine speed range of 2,500 to 3,100 rpm. The EPC supports the TDI’s turbocharger whenever there is insufficient energy in the exhaust gas for a spontaneous torque buildup—e.g.,

Audi 150
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New power-dense 2.0L GDI turbo with twin-scroll turbocharger and new combustion system offered in 2013 Chevrolet Malibu

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l/100 km) and 30 mpg (7.9 Increased efficiency in all of the new Ecotec engines is achieved in part through lower engine friction, which was reduced by up to 16% using new technologies such as a variable-displacement oil pump. Modular balance shaft system in the oil pan. Two-stage variable-displacement oil pump.

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