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How long does a RAM DPF filter last?

A RAM (Diesel Particulate Filter) filter typically lasts between 100,000 to 200,000 miles, depending on driving conditions and maintenance. The DPF filter is a critical component in diesel vehicles that helps reduce harmful particulate matter emissions.


What is a RAM DPF Filter?


A RAM (Diesel Particulate Filter) is a device installed in the exhaust system of diesel vehicles. Its primary function is to capture and store the soot and particulate matter generated by the diesel engine, preventing these harmful emissions from being released into the atmosphere. The DPF filter is an essential component of the diesel engine's emissions control system, helping to meet increasingly stringent environmental regulations.


How Long Does a RAM DPF Filter Last?


The lifespan of a RAM DPF filter can vary depending on several factors, including:



  • Driving Conditions: Vehicles that are driven in stop-and-go traffic or under heavy loads, such as towing or hauling, tend to accumulate soot and particulate matter more quickly, leading to a shorter DPF filter lifespan.

  • Maintenance: Regular maintenance, such as timely regeneration cycles and proper filter cleaning, can help extend the DPF filter's lifespan. Neglecting maintenance can lead to premature clogging and failure.

  • Vehicle Type: The size and engine displacement of the vehicle can also impact the DPF filter's lifespan, with larger engines generally requiring more frequent filter replacement.


Under normal driving conditions and with proper maintenance, a RAM DPF filter can typically last between 100,000 to 200,000 miles. However, in some cases, the filter may need to be replaced sooner, depending on the factors mentioned above.


Symptoms of a Failing RAM DPF Filter


As the DPF filter accumulates soot and particulate matter, it can become clogged, leading to various symptoms that indicate the need for maintenance or replacement. Some common signs of a failing RAM DPF filter include:



  • Reduced fuel efficiency: A clogged DPF filter can increase backpressure in the exhaust system, leading to a decrease in engine performance and fuel efficiency.

  • Increased engine noise: A clogged DPF filter can cause the engine to become louder, as the exhaust system is unable to effectively expel the gases.

  • Illuminated check engine light: The vehicle's onboard diagnostics system will typically trigger a warning light when the DPF filter is in need of maintenance or replacement.

  • Reduced acceleration: A clogged DPF filter can limit the engine's ability to generate power, resulting in sluggish acceleration and reduced responsiveness.


If any of these symptoms are observed, it is essential to have the DPF filter inspected and serviced by a qualified mechanic to ensure the continued efficient and environmentally-friendly operation of the vehicle.

At what speed does DPF regenerate?


In most cases, driving for 10 minutes at 65 km/h (about 40 mph) or faster will ensure proper regeneration. If the driver doesn't take the appropriate action, however, the soot accumulation reaches 75 % and another warning light should appear.



Can a DPF last 500,000 miles?


DPF maintenance intervals for EPA10/GHG14 engines are based upon fuel consumption with a maximum mileage range of 550,000 miles. Typically, the fuel limit is reached between 300-400k miles for a line-haul application.



How often does DPF need replacing?


around 100,000 miles
How Long Should A Diesel Particulate Filter Last? A DPF can last up to around 100,000 miles if maintained properly. After the car has exceeded that mileage, you could be looking at paying a large amount of money for a replacement – so always properly check MoT and service records when buying a used car.



Is it better to clean or replace DPF filter?


Bad answer. DPF's can and should be cleaned. Replacing instead of cleaning is an expensive overreaction. A DPF may never get blocked if cleaned properly. The materials will crack and break down, rendering it useless, but they should only block if there is a lack of maintanence.



How long should a DPF filter last?


100,000 miles
A diesel particulate filter on a poorly serviced car may fail sooner than a well maintained one, generally, they should last for at least 100,000 miles. It's important you use the right type of oil as well – some oils contain additives that can actually block filters.



How do I stop my DPF from clogging up?


How to avoid DPF problems

  1. Adding a DPF cleaner to the fuel tank every so often.
  2. Using high-quality fuel.
  3. Following a regular servicing schedule, which ensures the fuel filter is replaced at appropriate intervals.



How much does a DPF cost to replace?


Diesel particulate filter replacement
The price range of DPFs ranges from £750 to £3,500, depending on the make and model. This includes parts and labour. It can take several hours to replace your DPF, which is why it is better to leave it to the professionals to ensure it is completed correctly.



How much does it cost to replace a diesel DPF filter?


$1000 to $10,000
The cost of DPF replacement in a vehicle can range from $1000 to $10,000 or more. This cost may vary depending on the make and model of the vehicle, as well as the location and accessibility of the filter. It is recommended to have the filter replaced by a certified mechanic to ensure proper installation and function.



How much does it cost to replace a diesel DPF?


For passenger cars, the cost of replacing a DPF can range from AUD 1,500 to AUD 3,000 or more.



What is the life expectancy of a Cummins DPF filter?


between 100,000-150,000 miles
Typically, the life expectancy of a DPF system is between 100,000-150,000 miles (161,000-241,500 kilometers) However, this can vary depending on environmental conditions and how often preventative maintenance is performed. Regular cleaning and inspections can help to extend its lifespan.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.