Exhaust Gas Recirculation (EGR) is a cornerstone technology in modern diesel engines aimed at reducing nitrogen oxide (NOx) emissions by redirecting a portion of exhaust gases back into the intake ...

Controlling vehicle emissions in modern vehicles involves more than just bolting up a catalytic converter and calling it a day. There are other components that effectively, and intuitively, cut out ...

President Donald Trump granted full pardons to nine individuals convicted of federal Clean Air Act violations.

Cooled-EGR (Exhaust Gas Recirculation) systems have been used since October 2002 by five major engine manufacturers (Cummins, Detroit Diesel, International, Mack and Volvo) to reduce emissions of smog ...

A global review finds that water-in-diesel emulsion can slash NOx and soot at the same time, offering a cheaper path to cleaner diesel engines.