The U.S. Environmental Protection Agency is ramping up its pressure on engine makers to fix persistent persistent diesel exhaust fluid (DEF) system failures that have disrupted farming, trucking, and ...

The Environmental Protection Agency (EPA) has issued new guidance regarding diesel exhaust fluid (DEF) systems in diesel engines that cause trucks and tractors to enter “limp mode” when DEF levels are ...

Diesel Exhaust Fluid (DEF) is a crucial component in modern diesel vehicles, introduced to comply with US Environmental Protection Agency (EPA) regulations that began in 2010. It's a solution made up ...

Add Yahoo as a preferred source to see more of our stories on Google. The U.S. Environmental Protection Agency, working hand in hand with the U.S. Small Business Administration, is providing relief ...

Add Yahoo as a preferred source to see more of our stories on Google. EPA wants to eliminate truckers stranded by engine failures. (Photo: Jim Allen/FreightWaves) WASHINGTON — In a move to end “limp ...

The Environmental Protection Agency is requiring 14 major diesel engine manufacturers to provide detailed information about diesel exhaust fluid system failures that have affected farmers and truckers ...

The Iowa House advanced a bill Monday that would allow farmers to disable the diesel exhaust fluid, or DEF, systems required by federal emissions laws.

We may receive a commission on purchases made from links. The government's strict emissions limits for combustion-powered vehicles have pushed automakers to develop technologies that let their engines ...

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 ...

Lee Zeldin is administrator of the U.S. Environmental Protection Agency. Kelly Loeffler is administrator of the U.S. Small Business Administration. The U.S. Environmental Protection Agency, working ...