JLM Lubricants

JLM Diesel Extreme Clean Heavy Duty


 / 1000ml

  • Super strong all in one cleaner
  • Detox complete diesel fuel system
  • Clean Turbo & EGR Valve
  • Promoto DPF Regeneration
  • Restore engine power, improve emissions

JLM Diesel Diesel Extreme Clean Heavy Duty is a fuel additive specifically designed for on- and off-road HDV’s (including trucks, heavy machinery and stationary engines or gensets). It is the ultimate diesel system cleaner and rejuvenator addressing all common deposit related problems in modern diesel engines. Diesel Extreme Clean HD is a true multipurpose product that cleans deposits from the complete fuel system including injectors (external and internal), valves and combustion chamber, boosts cetane number up to 5 points and lubricates the diesel fuel pump in case of low sulphur fuel. This results in rapid restoration of engine performance and fuel economy.

In addition to cleaning the entire fuel system, Diesel Extreme Clean HD contains cerium (FBC) that promotes cleaning up the diesel particulate filter (DPF/ FAP) and keep it clean. Cerium significantly lowers the ignition temperature of soot collected in the Diesel Particle Filter and optimizes the periodic combustion of accumulated soot, a process known as filter regeneration.

The unique combination of a clean fuel system, clean combustion with lower emissions and soot particles that combust much faster will assist in keeping the catalytic converter, exhaust gas recirculation system (EGR) as well as the turbo compressor and its variable geometry vanes clean from deposits.

Product information

Internal Diesel Injector Deposits (IDID)
Deposit formation on injector valve, piston and needle result in:
• Difficulties to start the engine, or no engine start o Engine vibration and trembling
• Increased engine noise

External Diesel Injector Deposits (EDID, spray hole)
Nozzles of modern diesel engines have extremely small spray hole diameters. Inside and around the spray holes, deposits may form and reduce the amount of injected fuel or disturb the spray pattern. This causes power loss of the engine and higher fuel consumption. In addition, it results in incomplete combustion causing higher emissions and even more deposit formation.

Diesel Extreme Clean HD is a very effective cleaner for both internal (IDID) and external diesel injector deposits (EDID).

Dedicated concentrate for Heavy Duty Vehicles. For all diesel engines with or without turbochargers running on low or normal sulphur level diesel fuel and biofuel B7, B10 and B20.

Shake before use! Pour the contents of the 1 liter bottle in the diesel fuel tank before filling it with diesel fuel. 1 liter treats 500 liter of diesel truck fuel. Do not overdose!

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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 from a potential distributor.

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 extreme 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 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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