The role of a DPF, or diesel particulate filter, in a modern automobile is an important one. As the name implies, the DPF works to filter out particulate matter in diesel vehicles — more specifically, ...

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.

Government agencies and car manufacturers have worked to reduce the emissions and harmful gases in our air over the last few decades. Automakers downsized car engines and pushed EVs, while the ...