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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 a result, distance-specific mass and number emissions can be derived, which can then be compared to equivalent tire metrics.

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Achates near-zero heavy-duty opposed-piston diesel enters fleet service; compliant with 2027 NOx levels

Green Car Congress

The cleaner engine is able to deliver ultra-low NO x by managing exhaust gas temperatures to ensure rapid catalyst light-off and by maintaining aftertreatment temperatures at optimum operating conditions in all driving conditions.

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Study finds engines emit exhaust nanoparticles even when not fueled during engine braking

Green Car Congress

Exhaust particle size distributions measured by ELPI (color map) and particle concentration measured by CPC (white line) during individual engine braking conditions (speed change from 32 km/h to 0 km/h). The exhaust sample was taken from the exhaust manifold. The exhaust sample was taken from the exhaust manifold.

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Tenneco Powertrain adds hydrogen to its engine testing capabilities

Green Car Congress

Steffen Hoppe, Powertrain’s Director Technology Rings & Liners, Tenneco Tenneco’s new H2 ICE test facilities provide a broad bandwidth of high-accuracy engine measurement capabilities, including: Light and heavy-duty engine testing up to 700kW Eddy current and AC dyno ECU connectivity, calibration and tuning: dynamic engine operation; driving cycles (..)

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Study shows renewable diesel from crude tall oil is a high quality drop-in fuel for off-road engines

Green Car Congress

A team from the University of Vaasa (Finland) and UPM-Kymmene Corporation has examined how the blends of fossil and renewable diesel produced from crude tall oil (CTO) affect the performance and exhaust emissions of the modern common-rail off-road diesel engine. UPM BioVerno renewable diesel is produced from wood-based tall oil.

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Adamas: China rare earth consumption for catalytic converters down on weak passenger vehicle production

Green Car Congress

million liters of vehicle exhaust gas catalyst in the first half of 2019—a decrease of 13% year-over-year on weak passenger vehicle production. Rare earth consumption by oil refining industry up just 2% on back of slowing vehicle sales and ongoing electrification of transportation.

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Used Car of the Day: 1974 Alfa Romeo Berlina 2000

The Truth About Cars

This car has problems, such as rust, dents, and oil leaks. There's good, too, apparently: A rebuilt motor, all-new suspension, NOS Abarth exhaust, roof rack, TZ wheels, Weber cars, rally driving lights, and Euro bumpers. Oh, and a rear seal leak.

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