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

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

Removing an emissions device, while no longer a criminal matter, still represents risk for haulers. One responded to EPA and DOJ's recent moves on DEF faults and diesel derates, even questioning ...

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

If you’ve ever found yourself standing next to a diesel engine that refuses to start on a cold winter morning, you know the sinking feeling that comes with it. Whether ...

Two truck owners react to DOJ's recent shift away from criminal pursuit of delete shops and emissions tampering. Both emphasize why they "deleted" to begin with: Performance, fuel efficiency, "insane" ...

Diesel engines are known to be reliable and long-lasting, but they can also present unique maintenance issues that you must ...

The federal government will not pursue criminal charges for DEF/DPF tampering, but truckers should hold off on buying a ...

Across the trucking world, owners say modern emissions systems are turning routine breakdowns into financial […] ...

One of the common causes of lost power and performance in diesel-powered vehicles is a malfunctioning nitrogen oxides (NOx) sensor. These sensors monitor NOx levels in the vehicle’s exhaust. If they ...