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What Every Driver Should Know About DPF Filter Maintenance

It is important to understand the basic principles of DPF filter keeping for excellent vehicle performance. 

To keep Diesel Particulate Filters running for long, it is important to use cleaning services. Regular DPF filter cleaning services are recommended by manufacturers so as to avoid problems like increased back pressure and decreased fuel economy.

The Basics of DPFs

Diesel Exhaust Systems are equipped with diesel particulate filters. These are basically designed to collect or hold emissions of Particulate Matter (PM) such as soot from being expelled into the air. When it comes to harmful emission reduction, DPFs work together with other after-treatment devices like oxidation catalysts and EGR valves to achieve a significant decrease.

How DPFs Work

Most DPFs operate by making use of ceramic-based filters that have a honeycomb structure and in the process, hold soot particles as they pass through them. As time goes by, the accumulated soot can increase back pressure, which may affect engine performance. Consequently, the DPF is made to regenerate; that is, it undergoes a special process aimed at increasing combustion temperatures within it and thus eliminates the trapped soot using controlled portions of unburnt fuel. This regeneration is essential for preserving DPF’s effectiveness to do its job properly.

The Consequences of Neglecting DPF Maintenance

In order to avert these problems it is really necessary to deal properly with the DPF of your car. There are cases when the deposition of soot on it can lead to longer intervals between regenerations, loss of horsepower, less fuel efficiency, damage to filters, and even engine breakdown. If you don’t look after the maintenance of DPFs then there are high chances that you may have a failure in the engine, voiding the DPF warranty and attracting penalties for non-compliance with air pollution regulations.

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Recommended DPF Maintenance Intervals

Factors like manufacturer’s specification, condition of the engine, work cycle, and type of engine oil among others determine when DPF cleaning should be done. Most manufacturers recommend that the DPF be cleaned every year or after 1000 hours of running time on the engine. Environmental Protection Agency (EPA) might require a six-month cleaning interval in certain cases.

Common Causes of DPF Failure

There are several factors that are likely to cause DPF failure and hinder the regeneration process. Mechanical problems including malfunctions of glow plugs, an undermined thermostat, or a faulty lambda sensor are potential risks in regard to the development of clogs within DPF units. Moreover, the presence of DPF sensors, short journeys done at low speeds, and the use wrong oil are other causes of poor performance on the part of Diesel Particulate Filters (DPFs). It is therefore important to identify and resolve them in good time before they cause the failure of DPFs.

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Symptoms of a Blocked DPF

For prompt attention, it is important to be able to detect when a DPF gets blocked. Some indications of possible problems with the DPF include warning lights on the dashboard, more fuel consumption, a decrease in engine power, difficulties in starting the engine, and turbocharger problems. It is not worth risking expensive repairs or even more severe damages by ignoring such signs.

DPF Regeneration and Its Importance

DPF regeneration can occur through passive or active processes. Passive regeneration happens when the engine reaches temperatures above 350°C during normal driving, automatically burning off accumulated soot. Active regeneration, triggered when soot levels reach a certain threshold, involves injecting raw fuel to increase exhaust temperatures. Understanding and facilitating these regeneration processes are essential for DPF health.

Choosing the Right Engine Oil for DPFs

One major contributor to DPF failure is the choice of engine oil. Traditional engine oils with metallic additives can lead to ash accumulation, blocking the DPF substrate. To ensure DPF longevity, it is crucial to use low-SAPS (Sulfated Ash, Phosphorous, and Sulfur) engine oils specifically designed for vehicles with DPFs. European Automobile Manufacturers’ Association (ACEA) grades such as C1, C2, C3, C4, and C5 indicate the suitability of engine oils for diesel vehicles with DPFs.

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Valvoline’s Role in DPF Maintenance

Valvoline makes a variety of low-ash engine oils that meet the newest requirements for diesel engines and DPFs. For example, products like Valvoline Synpower Env C1 SAE 5W-30 and MST C4 Motor Oil SAE 5W-30 are formulated to ensure the most effective emission control which results in the protection of your DPF as well as Three-Way Catalytic Converter (TWC).

Costs and Consequences of DPF Replacement

DPFs are essential for environmental compliance. However, they can’t last forever. The cost of a new DPF can range between 200 € and 800 € whereas the full-service costs including supply and assembly may even reach up to 4,000 €. Sometimes, you may spend more on replacing the filter than the vehicle is worth. Therefore, proper maintenance is not only environmentally responsible but also makes economic sense.

The Dangers of DPF Removal

In some instances, drivers may consider removing the DPF to improve performance or avoid associated costs. Nevertheless, such an action is not just against the law but also bears severe penalties. DFP deletion results to emission regulations non-conformity hence attracting huge fines that lead to loss of motor vehicle insurance and inability to pass annual tests. However, authorized service centers provide DPF Filter Cleaning Services that are essential in ensuring diesel engine longevity and environmental protection.

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