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New Emissions Analytics study suggests pollution from tire wear now 1,850 times worse than exhaust emissions

Green Car Congress

In early 2020, UK-based independent testing firm Emissions Analytics published a study claiming that tire particulate wear emissions were 1,000 times worse than exhaust emissions ( earlier post ). As testament to the filtration efficiency of the latest gasoline particulate filters (GPFs), tailpipe mass emissions are now as low as 0.02

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Promising Delphi 1st-gen Gasoline Direct Injection Compression Ignition engine meeting ultra fuel efficient program targets

Green Car Congress

GDCI engine was significantly better than advanced production spark injection gasoline engines, and comparable to very efficient hybrid vehicle engines at their best efficiency conditions (214 g/kWh). They found that at all loads, GDCI was remarkably clean, with the potential for no aftertreatment for NO x and particulate emissions.

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Study of emissions from CNG- and gasoline-fueled autorickshaws suggests measurements and data, not assumptions, should drive policy

Green Car Congress

Chassis dynamometer emission testing conducted on 30 in-use Indian auto-rickshaws—two-stroke and four-stroke CNG-fueled (CNG-2S and CNG-4S) and four-stroke gasoline-fueled (PET-4S)—found that global warming commitment (GWC) associated with emissions from CNG-2S was more than twice that from CNG-4S or PET-4S, due mostly to CH 4 emissions.

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Chevrolet debuts 2014 Cruze Clean Turbo Diesel for US and Canada

Green Car Congress

2014 Cruze Clean Turbo Diesel engine. Assembled in Lordstown, Ohio, the 2014 Cruze Clean Turbo Diesel has demonstrated an estimated 42 mpg (5.6 This Cruze Clean Turbo Diesel represents a new era in diesel performance for American cars. 2014 Cruze Clean Turbo Diesel. Click to enlarge. turbo-diesel version of the Cruze.

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Swiss team concludes that particulate filters should be mandatory for GDI engines

Green Car Congress

Based on a three-year study of toxic and environmentally relevant pollutants from gasoline direct injection (GDI) engines, Swiss researchers have concluded that some GDI engines emit just as many soot particles as unfiltered diesel cars did in the past. Further, the GDI particles carry numerous carcinogenic substances. —Norbert Heeb.

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UK government launches new clean air strategy; ending sales of conventional diesel and gasoline LDVs by 2040

Green Car Congress

UK Environment Secretary Michael Gove published a new Clean Air Strategy to cut air pollution backed up through new primary legislation. To work with international partners to research and develop new standards for tires and brakes to address toxic non-exhaust emissions of micro plastics from vehicles which can pollute air and water.

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SwRI launches HEDGE-III; high-efficiency gasoline engine consortium targets LEV III, best efficiency of 43%

Green Car Congress

HEDGE-III will investigate solutions to the primary barriers to high efficiency in gasoline engines. Southwest Research Institute (SwRI) has launched its third cooperative research program aimed at developing a high-efficiency gasoline engine for the light-duty automotive and medium-duty engine markets. Source: SwRI. Click to enlarge.

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