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Mazda announces SKYACTIV-X: gasoline Spark Controlled Compression Ignition

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Compression ignition combined with a supercharger will improve fuel economy while delivering tremendous engine response and increased torque of 10–30% over the current SKYACTIV-G gasoline engine. Earlier post.). Earlier post.). Earlier post.). the greatest contribution to reducing carbon dioxide emissions. Yamasaki, Y., Umahashi, S.,

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Infiniti introducing production-ready variable compression ratio engine at Paris Motor Show

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In that study, they found that fuel economy and power output can both be improved by increasing the compression ratio and applying exhaust gas recirculation (EGR) under low loads and by lowering the compression ratio and applying higher boost pressure under high loads. (In VC-T technology is a step change for Infiniti.

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ICCT study concludes no technical barriers to use of higher blends of ethanol

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A team at the International Council on Clean Transportation (ICCT) has released a paper assessing technical barriers to the use of higher blends of ethanol. The Environmental Protection Agency’s Authority to Amend the Renewable Fuel Standard , Sutherland Asbill & Brennan LLP. car warranties, cost, food-vs-fuels arguments).

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New diesel Volkswagen Golf GTD heading for the US; first driving impressions

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diesel delivering 184 horsepower (137 kW), 280 lb-ft (380 N·m) of torque, CO 2 emissions of 109 g/km, and a NEDC combined fuel economy figure of 56 mpg US (4.2 The most important component for reducing internal emissions is variable valve timing, actuated by cam phasing. With a new 2.0L Variable Valve Timing.

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BMW Outlines Intelligent Heat Management Applications for Reducing Fuel Consumption and CO2; New Thermoelectric Generator Unit Integrated with EGR

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Even a highly efficient combustion engine converts only about one-third of the energy in the fuel into traction actually propelling the car. The remaining two-thirds are lost as waste heat going into the environment through the car’s exhaust emissions and through the radiator. Click to enlarge. No more cold starts.

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Cummins 5.0L V8 Turbo Diesel debuts in new 2016 Nissan Titan XD pickup

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Nissan’s new 2016 Titan XD full-size pickup, which made its debut at the 2015 North American International Auto Show, was also the platform for the debut of the first vehicle installation of the all-new Cummins 5.0L V8 Turbo Diesel since the partnership began in 2007. V8 Turbo Diesel engine. Earlier post.).

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Toyota reduces fuel consumption and emissions across the new Auris range; 13% average reduction in CO2 compared to predecessors; gasoline, diesel and hybrid

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When the first generation Auris was launched in 2007, the average emissions were 152 g/km. Toyota Optimal Drive showcases a combination of wide-ranging advanced technologies and internal improvement programs designed to optimize the balance of performance and driving enjoyment with fuel economy and low emissions.

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