What is Clean-diesel Technology
Up until recently, diesel fuel had few fans among auto consumers. Before 2005, the sulfur level in diesel across Canada amounted to 350 parts per million (ppm) on average; it even went as high as 2,500 ppm in some regions. However, in January 2005 and October 2006, the sulfur level was dropped to 30 and 15 ppm, respectively. That was a huge step toward improving fuel quality, which is necessary for proper operation of the emission control system on next-generation diesel engines.
What about the new diesels?
Diesel powerplants are now much more sophisticated and refined than they were a couple of years ago. Some of them feature common-rail injection which delivers four times more pressure than a traditional diesel. Through successive pulses, this type of injection system allows for a finer atomization and greater control of the fuel droplets. This promotes a more complete combustion process and a significant reduction in noxious emissions.
What's more, clean diesel engines use a sophisticated catalytic converter and particulate filter. Some automakers even add a urea-based solution to further eliminate nitrogen oxides. Others rely on advanced exhaust gas recirculation systems.
Clean diesel engines burn 30 percent less fuel and generate more power than conventional thermal engines.
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