Save Your DPF. Save Money. Skip the Garage Bill.
JLM's DPF products prevent, treat and professionally clear blocked diesel particulate filters — without removing a single part. No hassle, no headaches, no downtime.
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The JLM DPF Range
Four products, three stages of DPF care: prevent build-up before it starts, treat a filter that's already struggling, or call in a professional spray treatment for the toughest blockages.
DPF Problem? JLM Has The Solution.
Match your symptoms to see how JLM DPF products restore your filter.
The Problem
- The DPF warning light is on
- Reduced power, or the car stuck in 'limp mode'
- Fuel consumption creeping up
- Black or grey smoke from the exhaust
- A failed or borderline MOT due to excess soot or particulates
✓ The JLM Solution
- Warning light cleared — filter restored to normal function
- Full power restored, limp mode gone
- Reduced fuel costs — better economy from every tank
- Cleaner, smoke-free exhaust
- Cleaner emissions and a passing MOT
Which JLM DPF Product is Right For You?
Match your stage to the right level of treatment.
| Product | Best For | How Often | Applied |
|---|---|---|---|
 DPF ReGen Plus |
Preventative care — before any warning light appears, especially on short-journey/low-speed vehicles | Every 5,000 km, or every 3 months | Poured into the fuel tank |
 DPF Cleaner |
The first warning light, or light-to-moderate soot — before it becomes severe | As needed; one can treats up to 60 litres | Poured into the fuel tank |
 DPF Cleaning Spray |
When in-tank additives haven't cleared it and a workshop treatment is needed | Workshop treatment, as required | Sprayed into a cool DPF — professional use only |
 DPF Foaming Spray |
The same situations as DPF Cleaning Spray, when a stronger treatment is preferred | Workshop treatment, as required | Foam sprayed into a cool DPF — professional use only |
Prevent the Problem Before It Starts
JLM DPF ReGen Plus is a preventative fuel additive, not a cleaner for a filter that's already blocked. It's best suited to vehicles that make frequent short journeys or run mostly at low speed and low load — the driving pattern most likely to cause a DPF to block up in the first place — helping soot burn off at a lower temperature so the filter regenerates normally.
JLM's Best-in-Class DPF Cleaner
One of the true hero products in the JLM DPF range. Its cerium-and-platinum formula helps soot burn off at a lower, safer temperature — powerful enough to clear a blockage, yet gentler than aggressive or iron-based cleaners, which reduces the risk of overheating. Platinum can remain on the filter itself, helping rejuvenate older DPFs and support future regeneration.
The Professional-Grade Fix for Stubborn Blockages
When an in-tank additive hasn't cleared the blockage sufficiently, JLM DPF Cleaning Spray gives your workshop a fast, one-step professional treatment. Applied directly into a cool DPF through the pressure-sensor tube or temperature-sensor opening, it reduces soot loading enough for the vehicle to complete a normal regeneration.
JLM's Preferred Spray Stronger Contact, Better Results
DPF Foaming Spray is used in the same workshop situations as DPF Cleaning Spray, for a stronger treatment. Its light foaming action stays in contact with soot deposits for longer, improving cleaning efficiency — which makes it JLM's preferred spray solution for professional DPF cleaning. For the small number of severely blocked filters this doesn't shift, a two-step workshop treatment is the next option — ask your workshop.
Three Stages of DPF Care
From prevention to professional treatment — JLM has every stage covered.
Identify Your Stage
Match your symptoms (or lack of any) to the table above.
Treat via the Tank
Pour ReGen Plus or DPF Cleaner into a full tank of diesel and drive as normal.
Let It Work
Soot burns off at a lower temperature as you drive, no change to your routine.
Still Blocked?
Book a professional spray treatment with your workshop for a targeted fix.
Trusted by Workshops Handling MOT-Critical Repairs
JLM Lubricants is the official lubricant partner of the FIA European Rally Championship, and our DPF range is used daily by professional workshops handling MOT-critical repairs across Europe.
"Used DPF Cleaner when the warning light came on. Light went off after one tank. Saved me a fortune at the garage."
"I use ReGen Plus every 5,000 km as preventative maintenance. Haven't had a DPF issue in 3 years."
"As a workshop owner, the Foaming Spray is our go-to for stubborn DPF blockages. Works every time."
Frequently Asked Questions
Give Your DPF a Second Chance
Shop the full JLM DPF range and avoid a costly filter replacement.