Information on Diesel Particulate Filters and Diesel Oxidation Catalysts

Diesel particulate filters (DPFs) and diesel oxidation catalysts (DOCs) are exhaust after-treatment devices that reduce emissions from diesel engines. 

• Diesel Particulate Filter General Information (pdf) (619.83 KB, May 2010)
• Diesel Particulate Filter Installation (pdf) (681.86 KB, May 2010)
• Diesel Particulate Filter Operation and Maintenance (pdf) (600.88 KB, May 2010)
• Diesel Oxidation Catalyst General Information (pdf) (736.84 KB, May 2010)
• Diesel Oxidation Catalyst Installation, Operation, and Maintenance (pdf) (775.39 KB, May 2010)