The EPA is escalating its response to consumer complaints regarding DEF system failures, announcing a new investigation aimed ...

EPA’s unwinding of the Obama-era endangerment finding could amount to the largest deregulation in history. One positive outcome for farmers is the change it could mean for the use of Diesel Exhaust ...

Following Monday’s right-to-repair announcement, EPA is demanding DEF failure data from engine makers, targeting shutdowns ...

Breaking news, the EPA is forcing engine makers to reveal the truth behind their DEF systems for repairs, warranty claims to see if they have improved. They are also looking at if they even need to ...

Truckers blame DEF for shutdowns and big repair bills. Now, the EPA wants data from manufacturers that could reshape DEF ...

EPA demands DEF failure data from diesel makers. Investigation could force recalls and software fixes for engines already on U.S. roads. 30-day deadline set.

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 U.S. Environmental Protection Agency, working hand in hand with the U.S. Small Business Administration, is providing relief for any farmer whose tractor has suddenly shut down mid-field, or ...

The Trump administration is demanding warranty and failure data from top manufacturers in an effort to end truck engine shutdowns. The post EPA targets truck engine makers on DEF system failures ...

Manufacturers' required DEF derates will soon be less severe. Current equipment may enter limp mode and slow to 5 mph, or stop altogether until a DEF fault is cleared. The EPA's new guidance for ...

Diesel engines are known for several things. Power and torque are the biggest attractions, but there is another attribute that drivers like. They can rack up a lot of mileage without needing major ...

I recently read a pretty startling statistic—in the next year, the off-highway engine market will consume about 20 million gallons of Diesel Exhaust Fluid (DEF). In the next five years that number is ...