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

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

The EPA questions if diesel DEF de-rates are essential for emissions compliance. Could changes be on the horizon? Discover ...

The Trump administration is demanding warranty and failure data from top manufacturers in an effort to end truck engine ...

The U.S. Environmental Protection Agency is ramping up its pressure on engine makers to fix persistent persistent diesel ...

The EPA is considering eliminating the "limp mode" rule for diesel engines, a feature that drastically slows trucks and ...

One of the many things we love about running a diesel engine is how long it will run. You can pack in a lot of mileage without needing major repair - as long as you take care of the motor and keep ...

The federal agency is demanding failure and repair data from manufacturers to "hold [them] accountable for the continued system failures." ...

EPA asked manufacturers for info in hopes to "PERMANENTLY eliminate the deratements ENTIRELY," agency boss Lee Zeldin said.

Crystal contamination can be eliminated by adding Rislone DEF Crystal Clean ® Diesel DEF & SCR Emissions System Cleaner (part #4784) to the vehicle’s DEF/AdBlue ® tank. Once the system is clean, use ...

DEF is a key component in lowering pollutants emitted from diesel engines, helping to reduce harmful emissions. Long-haul truckers and diesel engine enthusiasts had to rethink their entire operations ...

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 ...