JLM Lubricants

JLM Penetrating Oil



  • Attacks rust and corrosion
  • Loosens rusted bolts, nuts, screws
  • Penetrates easily corroded, rusted, and frozen parts
  • Dissolves rust and displaces moisture
  • Lubricates and protects

JLM Penetrating Oil with MoS2 loosens corroded or rusted parts and enhances mechanical efficiency. Having reliable tools to tackle stubborn bolts, nuts, and rusted components is crucial. Thanks to its low viscosity, the JLM Penetrating Oil quickly penetrates into hard-to-reach places and loosens what is stuck. The product is water resistant and can therefore also be used preventively to prevent rust formation and corrosion.

Let’s check the technical specifications, benefits, and application of Penetrating Oil below.

Product information

JLM Penetrating Oil with Mos2 is a reliable and efficient solution for loosening seized parts and enhancing mechanical efficiency. From its powerful penetrating action to its corrosion protection and lubricating properties, Penetrating Oil delivers on its promise of improved performance and extended component lifespan. It contains the dry lubricant Molybdenum Sulfide (MoS2) and colloidal graphite, which ensures excellent lubrication of the product and provides extra protection against corrosion and wear. 

Key Technical Specifications: 

  1. Penetrating Action:
    Penetrating Oil with Mos2 is formulated with specialized agents that penetrate deeply into tight spaces and crevices. This penetrating action effectively loosens seized or corroded bolts, rusted nuts, frozen parts and other components (i.e., pipe fittings, valves, locks, zippers and tools), making them easier to remove without causing damage.

  2. Molybdenum Disulfide (Mos2) Content:
    The inclusion of Molybdenum Disulfide (Mos2) in Penetrating Oil enhances its lubricating properties and provides long-lasting protection against friction and wear. Mos2 particles adhere to metal surfaces, reducing friction and preventing metal-to-metal contact for smoother operation.

  3. Corrosion Protection:
    Penetrating Oil with Mos2 creates a protective barrier on metal surfaces, shielding them from moisture and environmental contaminants. This corrosion protection extends the lifespan of components and prevents future seizing, even in harsh operating conditions.
  4. High Temperature Stability:
    Engineered for durability, Penetrating Oil maintains its effectiveness at high temperatures, ensuring reliable performance in demanding applications. Whether in hot engine compartments or industrial environments, this oil remains stable and effective.
  5. Versatile Applications:
    Penetrating Oil with Mos2 is suitable for a wide range of applications, including automotive, industrial, and marine environments. From freeing rusted bolts and nuts to lubricating moving parts, this versatile oil is a valuable addition to any mechanic’s toolkit. 

Benefits for Professional Motor Mechanics:

  • Efficient Seized Part Removal:
    Penetrating Oil with Mos2 effectively penetrates rust, corrosion, and grime, loosening seized bolts, nuts, and components with ease. Its powerful penetrating action saves time and effort, allowing mechanics to complete repairs more efficiently.
  • Extended Component Lifespan:
    By providing lubrication and corrosion protection, Penetrating Oil extends the lifespan of mechanical components. This reduces the need for premature replacements and prevents costly downtime, enhancing the reliability and longevity of vehicles and equipment.
  • Enhanced Mechanical Efficiency:
    The inclusion of Mos2 particles in JLM’s Penetrating Oil reduces friction and wear on metal surfaces, resulting in smoother operation and improved mechanical efficiency. This leads to reduced energy consumption and increased productivity in automotive repair and maintenance tasks.
  • Prevention of Future Seizing:
    The corrosion protection properties of Penetrating Oil create a barrier against moisture and environmental contaminants, preventing future seizing of components. Regular application of this oil helps maintain optimal performance and prevents costly repairs.
  • Safe for Use on Multiple Surfaces:
    Penetrating Oil is safe for use on various materials, including metal, plastic, and rubber. Its non-corrosive formula ensures compatibility with a wide range of components and surfaces, providing peace of mind to professional motor mechanics.  

How to use:

  • Shake the container well before use to ensure proper mixing of the oil. 
  • Spray Penetrating Oil directly onto the seized or rusted bolts, nuts, or components. 
  • Allow the oil to penetrate for a few minutes, depending on the severity of the corrosion. 
  • Use appropriate tools to loosen the seized parts, taking care not to damage surrounding components. 
  • Wipe off any excess oil after loosening the parts to prevent contamination. 
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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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