The diesel particulate filter (DPF) has continued to improve over its 15-year existence. So have other components of aftertreatment systems (ATS) that help send cleaner exhaust through the DPF.

Add Yahoo as a preferred source to see more of our stories on Google. Your DPF and DOC don’t fail overnight—they fail slowly, one idle session and one short trip at a time. Some think emissions system ...

LAS VEGAS. A replacement line of diesel particulate filters (DPFs) and diesel oxidation catalysts (DOCs) for heavy-duty trucks has been introduced by Denso Products and Services Americas, which made ...