JLM Lubricants

JLM Rapid Fuel System Clean


 / 500ml

  • Super effective diesel Purge
  • Direct & Strong cleaning effect
  • Reduces emissions & fuel consumption
  • Cleans Diesel fuel system
  • Special formulation for use in fuel filter
JLM Rapid Fuel System Clean J02330 JLM Lubricants

In addition to the well-known JLM Rapid Fuel System Clean there is now an extra-concentrated JLM diesel system cleaner available for use directly IN THE FUEL FILTER. A powerful remedy for the professional.

Product information

JLM Rapid Fuel System Clean is a highly concentrated diesel system cleaner, which enters the motor undiluted via the fuel filter and removes soot deposits in the fuel rail, from injectors, valves, pistons, and from the combustion chamber.

Soot occurs in diesel engines as a result of the combustion of diesel fuel. The soot adheres to the valves, pistons and diesel injectors, amongst other things. Due to stringent environmental regulations, combustion in diesel engines is regulated with extreme precision by means of electronics. As a result of deposits of soot on the diesel injectors, fuel combustion progressively deteriorates.

In the first instance you will not notice any of the internal build-up of dirt, but as the engine gets older and its mileage increases, power loss occurs and the engine will start to run less and less efficiently. Amongst other things, the build-up of dirt is responsible for the piston rings starting to stick to the piston and no longer being able to press against the cylinder wall. As a result leaks occur between the pistons and the cylinder wall, compression in the cylinders decreases and oil consumption increases because the oil scraper ring no longer retains oil.

Help a car to get through its general periodic (MOT) inspection.

The build-up of soot in the engine is inextricably linked with emissions of soot through the exhaust. Diesel cars are checked for soot emissions during their general periodic (MOT) inspection. If the quantity of soot is too great, the car will fail.

Because JLM Rapid Fuel System Clean provides a cleaning boost, soot deposits are removed and soot emissions will decline. JJLM Rapid Fuel System Clean can make the difference between a pass or fail. The super-high concentrated cleaner consists of specially developed and a unique combination of additives. These additives quickly clean the fuel system and help the engine to improve its performance. JLM Rapid Fuel System Clean also prevents engine problems such as knocking on part load and irregular idling.

JJLM Rapid Fuel System Clean is suitable for internally cleaning all (severely) contaminated old and new diesel engines and for resolving less well known diesel faults and engine problems. JLM Rapid Fuel System Clean also prevents parts in the engine from quickly suffering a subsequent build-up of dirt. To keep the engine clean and ensure it is enjoying optimal performance you can use JLM Rapid Fuel System Clean.

Also replace the fuel filter
For best results we advise that you replace the fuel filter before using JLM Rapid Fuel System Clean. Fill the new filter with JLM Rapid Fuel System Clean and allow the engine to run undiluted on the additive. The JLM Rapid Fuel System Clean that is left over can be added to the fuel in the tank.

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JLM Lubricants

Great addition

"This is a great addition to the products in my workshop. We continuously see fantastic results in the recovery of emissions and engine performance, among other things."

- Paul Finn

JLM Lubricants


"I was very skeptical, but after using the product and starting my car, I couldn't believe my eyes ... the yellow light in my car was no longer on!"

- Kevin Kalo

JLM Fixing cars

Surprising­ly good

"I never thought that JLM would surprise me so much. It gets better and better every time. I will continue to use these products. The fantastic results speak for themselves. Keep up the great work."

- Andrew Watts


These are the most common questions we get.

Do any of the JLM additives help the performance of the high pressure diesel fuel pump?

J02330 Rapid is perfect for pump and injectors!

Is it OK to use the JLM Extreme Clean and the DPF Cleaner together?

No, this will not have a positive effect. In fact it may cause an adverse effect. And also the risk of overdosing! Never combine fuel additives


Will JLM Bluboost dissolve existing crystal infestation or is it more like a preventative product?

JLM’s Bluboost additive cleans and prevents crystal formation in the AdBlue® dosing system. It also conditions the AdBlue® fluid for a longer time to ensure proper working of the AdBlue® and SCR system. This helps prevent performance loss and the often-subsequent expensive repairs. It also reduces foaming at low temperatures

Is the JLM Engine Oil Flush safe for use with wet belt engines?

Our JLM OIL FLUSH is safe to use with ‘wet belts’ (TBIO). This is mainly because we use non solvent and premium pack of oil cleaning additives.


Does the Petrol Emissions Reduction Treatment also clean the catalytic convertor?

The catalytic converter is not a filter, it functions by converting harmful emission gases into less harmful gases. The filter can become contaminated if for example there has been an oil leak, and when this happens the filter needs to be replaced. There is no additive or chemical that will remove physical contamination from a catalytic.

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