No end in sight

Today’s clean diesels are a marvel, but regulators are far from finished

As diesel-powered cars begin to make a comeback in this country, there’s growing public awareness that diesel exhaust is clean, really clean. While you may hate the high cost of the emissions systems needed to meet them, Environmental Protection Agency (EPA) standards for diesel engines have resulted in trucks with almost no particulate matter (PM) or NOx emissions, two of the major components impacting air quality. Diesels and the trucks they power have gone from clean-air bad guy t

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TAGS: Fuel
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