Regeneration cleans out the soot by converting the carbon to carbon dioxide, and the ash is removed by removing the filter and cleaning it inĭiesel Particulate Filter Regeneration: How Do I Maintain a DPF? Just like there are two main particulates being filtered, there are two types of cleanings that are required. When this lights up, you know your filter is most likely blocked, and a regeneration may be required. This light varies based on manufacturer, but commonly appears similar to the imageīelow. So how can you tell if your filter is blocked? Typically, when the filter becomes clogged or an error occurs in the system, an orange light will appear on your dashboard. Additionally, filter blockage can be caused by the use of the wrong type of oil, performance modifications, using low-quality fuel or even running the car frequently on a low fuel level. Need to regenerate before hitting the 400,000 mile mark.ĭPFs may fail sooner if they are not well maintained.

For example, the Cummins ISX15 engine’s filter has an interval for cleaning up to 400,000 to 600,000 miles-although it will The lifespan of a diesel particulate filter varies based on the application. Vehicles operating at low speeds on short journeys are unable to meet the requirements for the filter to clean itself.ĭPFs can also fail due to poor servicing. Oftentimes, blocked diesel particulate filters are caused by short journeys at low speeds. What Are the Symptoms of a Blocked Diesel Particulate Filter? Prevents harmful exhaust emission and the black smoke you commonly see emitted from diesel vehicles when accelerating.Įngine manufacturers use DPFs to trap particulate matter in order to meet the EPA 2007 emission standards. The regeneration process burns off excess soot deposited in the filter, which In order to reduce emissions from diesel vehicles, diesel particulate filters capture and store exhaust soot, which must be periodically burned off to regenerate the filter. A DPF typically uses a substrate made of a ceramic material that is formed into a honeycomb structure. If you’ve been exposed to the world of diesel, you have probably wondered, “What is DPF?”Ī diesel particulate filter, or DPF, is an exhaust aftertreatment device that traps particulate matter such as soot and ash.

Failing to maintain these filters can lead to significant (and costly) consequences for the vehicle.įollow along as we share what diesel particulate filters are, signs of a blocked filter, types of regeneration and more. Whether you own a diesel-powered vehicle or aspire to become a diesel technician, it’s important to understandĭiesel particulate filters and how they work.ĭiesel particulate filters play a critical role in the functioning of diesel-fuel cars and trucks.

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