DPF PARTICULATE FILTER CLEANER REGENERATES AND PROTECTS K2 Perfect DPF concentrated cleaner helps prolong the life of particulate filter. Extremely easy to use - Apply 1 bottle into fuel tank , before filling up with 40-60 liters of Diesel. - Very Effective Concentrated additive to clean DPF Highly active molecules of additive - K2 Diesel act as a catalyst and constantly support soot filter combustion, reduce emission. - Prolongs live of the Filter. - Diesel Particulate Filters (DPF) catch particles of soot in the exhaust system. - Short trips, stop start traffic cause rapid clogging of the DPF. When the filter is full to some point the computer will indicate the process of regeneration. Using so called injectors. It will provide an extra portion of secondary.