Diesel engines across agriculture, trucking and construction have been sidelined by a tiny part that was supposed to keep the ...

Sick of DEF failures shutting you down? EPA is pushing changes that could reduce disruptions caused by faulty sensors.

Diesel exhaust fluid is essential for keeping your engine functioning without letting off too many emissions. But it doesn't ...

While diesel-powered passenger vehicles are increasingly limited in the U.S., they remain vital, especially for those in the ...