Isuzu Commercial Vehicles - Low Cab Forward Trucks - Emissions Diesel Particulate Filter

To reduce particulate matter, a Diesel Particulate Filter (DPF) captures soot and larger sulfate particles in a series of ceramic honeycomb channels. Exhaust gases are directed into a cordierite or silicon carbide molded substrate with closed ends. Gas passes through the porous material, and the particulates are trapped and accumulate on the channel walls. As is used currently, an Oxidizing Catalyst will control hydrocarbons.

Captures soot and sulfate particles
Oxidizing Catalyst controls hydrocarbons
Exterior engine and exhaust temperatures same as pre-2007 models during the regeneration process
Harmless ash is left as residue
Automatic or driver-initiated process