Passive Regeneration: Passive regeneration occurs naturally during normal driving conditions. When the exhaust temperature reaches a certain level , typically above 600 degrees Celsius , the soot particles trapped in the DPF are oxidized and converted into less harmful substances , such as carbon dioxide and water vapor . This can result in reduced engine and DPF efficiency. Face plugging and filter overload are often the result. Cold starts also create the need for more frequent DPF cleanings, which shorten DPF effectiveness and, ultimately, lifespan. Factor in downtime for cleaning DPFs and replacement costs can range between $2,500 to $8,000 per vehicle. An automatic regeneration will occur approximately every 250 to 300 km depending on driving conditions/style. How Long Does an Automatic Regeneration Take? An automatic regeneration can take as long as 20 to 30 minutes depending on driving conditions/style. Characteristics of a DPF Regeneration. The DPF system may have the following You get better combustion, faster more efficient burn and a dramatic reduction in soot. Less soot = Less need for DPF regeneration. That’s how DPF Remedy solves DPF problems starting with the first tank of treated fuel. Many of our clients have seen daily regens go to weekly or monthly regens. Hold for 20-30 minutes. This will assist the car to do a passive regeneration. The main reason DPF’s get blocked is short trips and city driving. Drive Faster. If you are driving slowly everywhere in your large diesel, the DPF will become blocked.
to ash during filter regeneration. Regeneration occurs when the filter element reaches the temperature required for combustion of the PM. “Passive” regeneration occurs when the exhaust gas temperatures are high enough to initiate combustion of the accumulated PM in the DPF, without added fuel, heat or driver action. “Active”
All About DPF Regeneration. Have a few questions about DPF regeneration? Here are the most common queries about the process. How to tell your car is regenerating its DPF? High Idle speed - the engine will remain at 1500-2000 RPM whilst stationary ; Excess heat from under the car ; Very poor fuel economy - instant economy readout will likely halve cGc4B.
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    • how often does dpf regeneration occur