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VW Premieres New Polo GTI; Textbook Downsizing Results in 25% Reduction in Fuel Consumption from Predecessor

Green Car Congress

The new Polo GTI, in what Volkswagen is calling “textbook downsizing”, is powered by a new 1.4-liter The engine, which delivers 132 kW (177 hp), is coupled with a 7-speed DSG as standard. By comparison, its direct predecessor with regard to power—equipped with a 132 kW 1.8-liter

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Study Finds Strong Synergy Between Spark Ignition Engine Downsizing and Low-to-Moderate Alcohol Blend Fuels

Green Car Congress

A study by engineers from Mahle Powertrain Ltd and BP found strong synergy between spark ignition (SI) engine downsizing and fuel containing low-to-moderate amounts of alcohol, including ethanol and butanol. The team presented a paper on their work at the recent SAE 2009 World Congress in Detroit. O 2 (% wt). Cairns et al. SAE 2009-01-0138).

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Former Commerce and Transportation Secretary Norman Mineta urges technology neutral policies in reaching proposed CAFE standards

Green Car Congress

those which do not favor one technology over another through consumer incentives, federal subsidies, testing standards or technology-specific credits. The quickest and most cost-effective way to achieve our energy usage goals is through faster adoption of fuel-efficient downsized gasoline and diesel engines.

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Frost Sullivan Projects That About 80% of European Vehicle Sales Will Be in the 150 g/km CO2 Band by 2015; EVs as a Strategy of Premium Automakers

Green Car Congress

As a point of comparison, the US EPA’s proposed national CO 2 emissions standards for light-duty vehicles under section 202 (a) of the Clean Air Act would require these vehicles to meet an estimated combined average emissions level of 250 grams/mile of CO 2 —155.26 g/km—in model year 2016. Hariher Balasubramanian.

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Pinnacle Engine pre-production prototype opposed piston engine shows about 27% fuel consumption improvement across different scooter cycles compared to conventional engine

Green Car Congress

Fuel mass flow comparison shows Pinnacle engine ahead at just about all points in the map. Right now, the emissions standard in the target market is Euro 4. We did another study with FEV, projecting our data onto a turbo downsized application; we get nearly 50% improvements in common automobiles. Click to enlarge.

Engine 262
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Full lifecycle CO2 of new Mercedes C-Class 10% less than outgoing model

Green Car Congress

CO 2 emissions of the C 180 in comparison to its predecessor [t/car]. The CO emissions of the new C-Class during operation are 76 % below the level stipulated by the Euro 6 standard that comes into effect in 2015. The C 180 with manual transmission shows a drop in fuel consumption in comparison to its predecessor from between 7.6

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Study finds fleet switch from PFI to GDI engines will result in net reduction in global warming

Green Car Congress

Although real-world fuel economy improvements from GDI technology alone are close to 1.5%, they can reach 8% by downsizing and turbocharging the engine, which can be achieved on GDI engines without loss of power compared to PFI engines. All the vehicles were tested using commercial gasoline that met the summertime California fuel standards.

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