Long-haul truckers and diesel engine enthusiasts had to rethink their entire operations in 2010 when the Environmental Protection Agency mandated selective catalytic reduction technology. Selective ...

EPA Administrator Lee Zeldin announced a proposal on Tuesday to rescind regulations that paved the way for the requirement of DEF use. Mike Berdo has strong words to describe his ongoing experiences ...

This is the kind of question where we'd better talk about terms before answering it. That's because AdBlue is a brand name for what folks in the United States usually call diesel exhaust fluid — aka ...