Sentences with phrase «diesel emissions during»

VW Canada stopped selling the diesel models about the same time its German parent acknowledged that the vehicles had been designed to adjust diesel emissions during testing to provide better results than under normal operations..

Not exact matches

EMISSIONS - Because diesel fuel is heavier and oilier than gasoline it can be more polluting, earning a reputation for sootiness when it came into wider U.S. automotive use during the 1970's oil crisis.

The group found that although fuel - cell vehicles would produce zero greenhouse - gas emissions during use, the extraction and refinement of hydrogen fuel would release three to five times as much carbon into the air as is released in procuring and refining gasoline and diesel.

Last January was a prime example of what can happen during such measurements: the test candidate, a 2016 diesel Renault Mégane, already displayed high nitric oxide emissions at Empa's test rig.

These new trucks — which employ a diesel combustion engine along with a hydraulic high - pressure accumulator that stores energy captured during braking — get 35 percent better fuel economy and generate as much as 30 percent fewer greenhouse gas emissions as compared to the non-hybrid diesel - powered vehicles they are replacing.

During his tenure, the company developed and used defeat devices that allowed its engines to cheat diesel - emissions testing.

But because of the software hack designed to only run emission controls full during emissions tests, those diesels have been emitting 10 to 40x more NOx.

They compared estimated emissions for shale gas, conventional gas, coal (surface - mined and deep - mined) and diesel oil, taking into account direct emissions of CO2 during combustion, indirect emissions of CO2 necessary to develop and use the energy source and methane emissions, which were converted to equivalent value of CO2 for global warming potential.

In contrast, petroleum diesel releases roughly 85 percent of its greenhouse gas emissions during combustion in a vehicle's engine, the final use stage.

The Touareg has a diesel particulate filter to further reduce particulate emissions, and it has uses a NOx - storage catalyst, which is basically a reservoir that temporarily holds the noxious emissions, like a particulate filter, until they can be burned off during one of the engine cycles.

The soot released during a romantic candle - burning is similar to the emissions released by diesel - burning vehicles.

The Jetta has a diesel particulate filter to further reduce particulate emissions, and it has uses a NOx - storage catalyst, which is basically a reservoir that temporarily holds the noxious emissions, like a particulate filter, until they can be burned off during one of the engine cycles.

To calculate possible benefits of policy action, the study provides «maximum feasible reduction scenarios» that take into account the incorporation of emissions control technologies such as seawater scrubbers that absorb sulfur dioxide emitted during the burning of diesel fuel.

Finsbury previously represented Volkswagen AG during its diesel emissions scandal.