DEF stands for diesel exhaust fluid, and it is mandatory for all semi-trucks to use it in the United States. Here's why and ...

D.C. Fire and EMS (DC FEMS) officials are working to clean up 250 gallons of diesel that spilled in Adams Morgan on Tuesday ...

The installation of the pump at the Pilot Travel Center offers a glint of hope to soybean farmers fearful of the impacts of a ...