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Understanding and Maintaining Your Diesel Particulate Filter (DPF)The Diesel Particulate Filter (DPF) is a crucial component in diesel engines, designed to capture and trap soot and ash produced during combustion. Introduced as part of the EPA 07 regulations and further enhanced by the EPA 10 regulations with the addition of the Selective Catalyst Reduction (SCR) system, the DPF plays a vital role in reducing diesel exhaust emissions. Importance of DPF MaintenanceProper maintenance of the DPF i …