If you’ve had your diesel RV or tow vehicle suddenly lose power because of a DEF (diesel exhaust fluid) issue, you’re not alone. And now, the EPA is stepping in with changes that address this problem.

DES MOINES, Iowa (IOWA CAPITAL DISPATCH) - U.S. Environmental Protection Agency Administrator Lee Zeldin announced guidance Tuesday for engine and equipment manufacturers to prevent sudden shutdowns ...

[Stay on top of transportation news: Get TTNews in your inbox.] The Environmental Protection Agency is directing truck manufacturers to revise software in new and existing trucks to prevent engine ...

The Environmental Protection Agency announced it is taking actions to ease the frustration and disruptions around sudden “derates” of diesel engines when they run out of diesel exhaust fluid or have a ...

Nick Davis of Freedom Dumpsters LCC spoke with federal officials about an issue he was having with diesel exhaust fluid (DEF) systems, which led to a rule change from the U.S. Environmental Protection ...

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 ...