Every diesel truck owner eventually hears about the DPF — the diesel particulate filter that catches soot before it can escape out the tailpipe in order to burn it off once the exhaust is hot enough.

A diesel particulate filter cleaning job shows how a DPF is prepared, washed, tested, and dried before being refitted to the ...

We’re just now beginning to accept that we have to do things differently from what we have always done in order to maintain our aftertreatment systems. We’ve had 14 years to figure it out, yet diesel ...