Particle Filter Additive Service by DPF
Particle Filter Additive Service
From £330
+443300100366
Particle Filter Additive Service Overview
Particle Filter Additive Service Overview
Particle filter additives — also known as Eolys or PAT fluid — play a crucial role in maintaining diesel particulate filters (DPFs). Engineers specifically design these additives to aid the regeneration process of the DPF. By lowering the ignition temperature of soot particles, they enable a more efficient and complete burn-off during the regeneration cycle. When the engine management system detects a blockage — typically indicated by a pressure difference between the inlet and outlet of the filter — it initiates this cycle. As a result, the DPF remains clean, helping to maintain engine performance and reduce harmful emissions.
- Free DPF Health Check
- Eolys (PAT) Fluid Level Check
- Refill Eolys (PAT) Fluid Tank
- Forced Regeneration Clean
- Program and Reset Adaptations
+443300100366
DPF Specialists are the UK’s leading experts in diesel particulate filters and offer convenient roadside repair services. If your car is running low on Eolys fluid, the DPF may become blocked—leading to reduced performance or potential damage. Fortunately, with our service, we can restore your Diesel Particle Filter Additive Service levels and perform a Forced Regeneration Clean as part of our DPF Health Check.
Don’t wait for the problem to worsen—contact Auto Assist Group today for fast and professional assistance.
What is Particle Filter Additive Service (Eolys Fluid)?
The additive, namely Eolys, contains cerium and iron compounds that assist DPF regeneration during normal driving conditions. And if for any reason it’s empty the car will not attempt any kind of DPF regeneration.
+443300100366
If the Eolys runs out then for a short while nothing untoward will happen as the FAP fills up with particulates. The problem will come when regeneration is initiated. The Eolys is there to reduce the temperature at which regeneration can take place so the probability is that the particulates will not burn off. This means that in very short order the FAP will become blocked and the engine just won’t work as the exhaust gasses can’t get through properly.
There will probably be lots of warning lights and messages on the dash whilst all this is happening so you won’t be unaware of it!
Each model varies on amount required every manufacture has a maximum set for the tank.
A full tank of eolys additive should last around 70,000 miles.
Eolys fluid is only mildly toxic after it has done its job in the exhaust but this is being measured in parts per million. Actual contact of Eolys fluid with the skin (or any other body part) where the concentration will be higher is to be avoided.
Eolys fluid can be brought in kits or 1-5litre bottles and prices vary.
Eloy fluid has a separate tank mainly underneath the vehicle access can be tricky, programming and data reset is required once complete.
Prevention is better than cure
From £29.99
