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.

This story appears in the November/December 2010 issue of Equipment & Maintenance Update, a supplement to the Nov. 8 print edition of Transport Topics. Click here to subscribe today. Some fleet ...

This story appears in the May 27 print edition of Transport Topics. Retrofits of diesel particulate filters onto older vehicles that never had them will take a jump in 2014, when California’s rule ...