Understanding Diesel Particulate Filters (DPFs): What They Are and Why Your Vehicle Needs One
DPF stands for diesel particulate filter, and as the name suggests, it stops tiny diesel particles (otherwise known as soot) that are emitted from your vehicle’s exhaust. If certain precautions are not adhered to, the way DPF’s work can create problems.
What is a DPF Filter?
Diesel engines burn fuel a lot differently than gas engines. Soot is created as a result of the combustion process. This ultra-fine, nearly invisible material can cause serious environmental issues, it’s the DPF’s job to catch and destroy them before this happens.
DPF’s were standardized in 2009, but some vehicles had this technology before then.
While a DPF’s primary purpose is to trap and hold on to damaging particulates, it also needs to get rid of them. In a process called regeneration, the DPF exposes them to extremely high temperatures, burns them and turns them into harmless ash.
DPF Regeneration and Why Diesels Can Be Bad for Short Trips
The DPF can start regeneration in a couple of ways, but both need the exhaust gases to get extremely hot – usually around 500 degrees Celsius, which is twice as hot as a regular oven. ‘Passive regeneration’ takes place when you drive your car at speeds above 40mph for several minutes at a time, and doing this regularly should burn off the particulates in the DPF automatically.
Drivers who only drive short distances, won’t get their exhaust to a high enough temperature for ‘passive regeneration’ to happen. This can create a soot build-up, eventually blocking the DPF and creating engine problems such as misfiring and reduced fuel-efficiency. You may also see a warning light on the dashboard.
If you don’t regularly drive at a high speed, the engine will try to clear the DPF via ‘active regeneration’. This is where the after treatment system causes the exhaust gases to get hot enough to burn off the soot without requiring the car to be run at speed.
Unfortunately, active regeneration can only take place when the vehicle is moving, so anyone who does not do much highway driving may find their vehicles are unable to actively regenerate the DPF.
Most vehicles have a two-stage warning system. An amber light means you should be able to get the DPF to regenerate itself by driving over 40mph for about 10 minutes. However, if you see a red DPF warning light, however, this means a trip to the garage is needed.
If the DPF light comes on, it’s time to get device cleaned.
You will need to get your DPF cleaned as soon as possible. While you can buy DPF cleaner fluids from automotive stores, these are not proven to be effective. It is best to leave DPF cleaning to the professionals.
What is a DOC and can it be cleaned?
Yes, we can clean DOC’s. We can clean your DOC on our Silver Service which restores it back to 80 – 85% and comes with 6 months warranty. Our Silver Service - $299 Please be aware there is no way for us to test the DOC. We do not recommend using our Gold Service on your DOC because it this would ruin the precious metals in your DOC and make it useless.
Is it possible to clean an SCR?
Yes, we can clean your SCR on our Silver Service which restores it back to 80 to 85% and includes a 6 month warranty. Our Silver Service - $299 Please be aware there is no way for us to test the DOC. We do not recommend using our Gold Service on your DOC because it this would ruin the precious metals in your DOC and it would no longer perform correctly.
Do you offer EGR cooler cleaning?
Yes, we do. We recommend choosing our Gold Service for your EGR, however please be aware that we cannot test EGR’s.
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If you're in need of DPF cleaning services, don't hesitate to contact us. Our team of experts is ready to assist you and provide the best solution for your DPF-related issues. Whether you have a commercial fleet or a personal vehicle, we have the knowledge, experience, and resources to meet your needs. Don't let a clogged DPF compromise the performance and efficiency of your vehicle. Reach out to us today and experience the benefits of professional DPF cleaning.