The Environmental Protection Agency is asking diesel engine makers to provide information about diesel exhaust fluid system failures as it considers changes to emissions regulations.

With 2020 being dominated by challenges caused by COVID-19, some diesel-powered vehicles have likely been out of service for a long time. This includes buses, motorcoaches, trucks, and other fleet ...

If you regularly drive a modern-day diesel-powered vehicle, chances are, you know what Diesel Exhaust Fluid (DEF) is. A crucial component used by most modern vehicles with diesel engines, DEF — which ...

If you're short on time, here's what you should know. The primary claim made in the viral Facebook post was that Union Pacific was placing an embargo on Pilot Flying J. That supposed embargo would ...

As restrictions are being lifted across most states in the U.S. and with warm weather upon us, it is important to consider proper management of diesel exhaust fluid (DEF) used in modern diesel-powered ...