The GM Duramax 3.0L LZ0 engine relies on a Diesel Particulate Filter, or DPF, to reduce emissions. Now, we're taking a closer ...

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

The Diesel Particulate Filter (DPF) is an important part of modern diesel vehicles that many people don’t understand. The DPF’s main job is to catch harmful soot and ash from the exhaust stream before ...

Every little bit of efficiency a fleet can squeeze out of engines can go a long way in maintaining a healthy profit margin. Even for fleets that spec the latest in aero kits, low rolling resistant ...

It's standard for older diesel engines to emit black smoke under full load, which occurs during "turbo lag." As the diesel engine waits for the turbo to spool, the machine will blow thicker black ...