FAQ - DPF Medic

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1st in speed. 2nd to none in quality.

On road, off road, water, rails, and stationary.

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(844) 373-6331

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Diesel Particulate Filter or DPF is a filter designed to collect particles of soot from the exhaust gas of a diesel engine. All on-highway diesel vehicles sold as 2007 model year or newer must have a diesel particulate filter installed.

What is a Diesel Particulate Filter?

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Yes. A diesel particulate filter traps all of the particulate matter (PM) before exhausted out into the atmosphere. The engine goes through a regeneration process that essentially burns the collected soot at a temperature of about 1500° F. Avoid expensive DPF / DEF replacement costs by cleaning your diesel particulate filter. Regular DPF cleaning extends the life of your filter and keeps your diesel engine running at peak performance power.

Should a DPF / DEF be cleaned?

There are two different types of regeneration strategies when comparing how a DDPF / DEF works. Every 2007 model year on-highway truck that has a DPF installed uses active regeneration. As long as the truck is going faster than 20 mph when the filter gets full, the engine will do an automatic regeneration and burn off the collected particulate. On some retrofit filters, the regeneration strategy is a passive chemical regeneration. The duty cycle for these filters must have exhaust temperature above 575°F for more than 30% of the duty cycle. What is left in the filter is a small amount of soot or ash, similar to the ash of a cigarette. If the truck sits at idle for long periods, the dash light will come on and alert the driver to perform a manual regeneration. The more ash collected in the filter, the shorter the time intervals between regeneration. As the diesel particulate filter becomes clogged, the diesel engine will begin losing power and reducing fuel economy. Warning lights will alert the driver. However, if the driver does not get the filter cleaned, the engine will shut off completely.

How does the DPF function?

How much is a new Diesel Particulate Filter?

The cost for a new Diesel Particulate Filter varies between $3,000 and $10,000.

How often should a DPF / DEF be cleaned?

Cleaning a Diesel Particulate Filter depends on the engine manufacturer’s recommendations. Volvo, Cummins, Caterpillar, GMC and Detroit Diesel all have different recommendations for cleaning the DPF / DEF used with their diesel engines.

What are the benefits of a regular DPF / DEF cleaning schedule?

- Increased fuel economy

- Less downtime

- Less regeneration

- Extended filter life

- Lower maintenance costs

- Extended cleaning intervals

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How a diesel Particulate filter works PNG