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CRC study finds some adverse results from use of mid-level ethanol blends in MY 2001-2009 engines; DOE and ethanol industry say study significantly flawed

Green Car Congress

The study claims mechanical damage and suggests degraded engine performance, emissions and durability on conventional vehicles from the use of E15 or E20 fuel. Three main engine wear mechanisms are impacted by ethanol fuels: abrasive wear, adhesive wear and corrosion. We believe the study is significantly flawed. Earlier post.)

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EPA annual report on CO2, fuel economy and technology trends finds 2012 heading for all-time best; rapid adoption of new technologies

Green Car Congress

Adjusted CO 2 emissions and adjusted fuel economy, MY 1975-2011. The report finds that CO 2 emissions rates and fuel economy values reflect a very favorable multi-year trend beginning in MY 2005. The fleet-wide average real world MY 2011 personal vehicle CO 2 emissions value is 398 g/mi and average fuel economy is 22.4

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ICCT update finds real-world vehicle fuel economy gap continues to widen in Europe to 40%

Green Car Congress

The gap between official fuel-economy figures and the real world for new cars in the EU has reached 40 per cent, according to the latest update by the International Council on Clean Transportation (ICCT) to its on-going research into in-use vehicle fuel efficiency and CO 2 emissions. Earlier post.).

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Riversimple introduces Rasa prototype two-seater fuel cell vehicle; 300 miles on 1.5kg H2; production version in 2018

Green Car Congress

unveiled the Rasa, a road-legal engineering prototype of its first two-seater hydrogen fuel cell road car, built for full European type approval. million) grant from the Welsh government in 2015, the Rasa was designed for lightness, strength, affordability and safety. Riversimple Movement Ltd. Earlier post.)

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Envera LLC Nearing Completion of New Actuator Mechanism Project for Variable Compression Ratio Engine

Green Car Congress

Envera LLC is nearing completion of a project to develop a new hydraulic actuator mechanism for its variable compression ratio (VCR) engine. A number of studies have concluded that fuel economy could be improved by about 30% with a combination of VCR, boosting and engine down-sizing. Envera is currently developing a 1.85-liter

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To Look Forward, Sometimes You Have to Look Back

Cars That Think

Each January, we look at projects across the globe and from a range of engineering disciplines that will have major milestones in the coming year. operations in 2021, ironically just after receiving a Special Light-Sport Aircraft airworthiness certificate from the U.S. Back in 2001, Senior Editor Michael J.

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U-M study finds current CAFE standards create profit incentive for larger vehicles

Green Car Congress

The current vehicle footprint-based Corporate Average Fuel Economy (CAFE) standards create a financial incentive for automakers to increase vehicle size, except under certain limited conditions of consumer preference for vehicle size, according to a study by University of Michigan researchers Kate Whitefoot and Steven Skerlos. 10 11 –5.17×10

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