Automotive Uses - NanoSlick Lubricants

Castrol was the first to introduce liquid tungsten to motor oils with its revolutionary anti-wear properties and in the 1970s launched a low viscosity rated engine oil to the consumer market that boasted significant fuel efficiency benefits – a product formerly available to racing teams.

We have several customers that use our NanoSlick Tungsten Products for Automotive uses, however we have not completed a thorough testing of their use in automobiles.

Legal Disclaimer – NanoSlick is not responsible for any damages that could result from use or improper use in any type of engine, you are solely responsible for using any of our products for engine use.

Customers who have used Tungsten Disulfide for automotive use have reported the following:

First three oil changes should consist of mixing 1.4grams (1700ppm) NanoSlick Tungsten powder per 1 quart of oil.
All other oil changes should consist of mixing .2grams (250ppm) NanoSlick Tungsten powder per 1 quart of oil.

For manual transmission, mix 10 grams Tungsten powder to 1 liter of fluid.

Automatic transmission: Do not mix NanoSlick Tungsten Lubricants in automatic transmission (clutch will slip).

Many customers also mix NanoSlick Tungsten Powder in differential oil and bearing grease too.

  • Reduced fuel consumption and emissions through reduced friction and increased combustion gas density.
  • Increased engine power.
  • Immediate lubrication at cold start, Ester and WS2 attach to metal, the lubricant film remains intact even under extreme loads, temperatures and speeds.
  • Reduces and removes varnish and sludge formation, increased dirt holding capacity of the engine oil, cleaner engine.
  • Greatly reduced engine wear, saving on maintenance and repair costs, increases the “creeping” power of the engine oil, better lubrication in hard to reach places within the engine.
  • Reduced oil consumption and engine noise.
  • Lowers the pour point and volatility, increases the viscosity index, thermal stability and heat removal capacity of the engine oil.
  • Excellent dry running lubrication due to high Tungsten concentration.
  • Increases the anti-oxidation and anti-wear ability of the engine oil.
  • Reduces the load and aging of the engine oil, allows higher engine operating temperatures without oxidation of the engine oil.
  • WS2 nanoparticles are not separated by the oil filter.
  • Does not clogg Diesel Particulate Filters.
  • Suitable for gasoline, LPG, LNG and diesel engines with or without DPF.


After about 1000 km’s the first effects of the Tungsten Disulfide become noticeable, after 3 to 4 oil changes, at the prescribed interval, with the addition of Tungsten Disulfide the maximum impact is achieved and all moving parts within the engine will be coated with an ultra-thin, super strong and permanent WS2 coating.


  • Reduces fuel consumption up to 10%
  • Less vehicle maintenance & service required (extend oil change intervals)
  • Two in one solution – no need for separate additives
  • Greatly reduce energy consumption


  • Improve engine power & torque
  • Reduce engine noise & vibration


  • Extend engine life by minimizing engine wear
  • Easier to start from cold ignition

Benefits demonstrated in a number of trials:

  • When added to Mobil Delvac 1300, the coefficient of friction was reduced by 68% and the four ball wear scar by 42%.
  • When added to a common brand 15W40 engine oil, the wear scar diameter was reduced by 37% while the welding point was increased by 56%.
  • When added to 5W40 Shell Helix, the resultant oil had a reduced wear scar diameter of 28.8% and a coefficient of friction reduction of 7% over 3500 hours.
  • When used with Shell Rotella on Freightliners the fuel consumption was reduced by up to 2.3% on new engines and over 10% on older engines.
  • “There are many more examples of the dual action of the additive pack reducing friction and refurbishing damaged surfaces by filling the asperities, micro-cracks and irregular micro-surfaces caused by operational wear,”.
  • “Under heavy loads the micro layers of WS2 form a protective monolayer of WS2 on the surfaces of the metal to protect the working surfaces and prevent them from touching. The reduction in friction leads to lower operating temperatures and lower wear.
  • “The shape of the particles allows them to roll between the metal surfaces of engines, components and hydraulic equipment, reducing friction by up to 30%.”


Below is an abstract of the article written by Paula Ussa Aldana. The research work focused on the utilization of tungsten disulfide as lubricant additives, which is a template for further research thesis.

Abstract: The growing environmental concerns, along with the continuous increase of energy demand, have encouraged research to improve energy efficiency in every technological field. In the transport industry, responsible of more than half of the world’s oil consumption, manufacturers have bet on hybrid fuel technologies, more aerodynamic car profiles, innovative tires and even downsizing of engines and gearboxes to reduce the weight of the vehicles to face the problem. However, according to VTT Technical Research Centre of Finland, in passenger cars one third of fuel consumption is due to friction loss. This means that several millions of liters of fuel are used every year to overcome friction around the world. As a consequence, reduction on the friction losses would have a direct impact in oil consumption. For this reason, research in the tribology field has specially focused in the development of low friction materials and more efficient lubricants. This work investigates the potential of metal dichalcogenide nanoparticles as lubricant additives for automobile applications with the aim of formulating more efficient lubricants. These nanoparticles which were synthetized for the first time in the 90’s have shown interesting tribological properties when added to base oil under specific laboratory test conditions. However, their future use in real-life mechanical systems needs a better comprehension of their behavior on rough surfaces and in the presence of additives commonly used in industrial lubricants.Industrially produced tungsten disulfide nanoparticles were used in this work. First of all, the industrial context of this work and the basis of tribology science in general and of tribology in the automotive industry in particular are exposed in the state of the art part. In this section, a literature review of the lubricating properties of laboratory scale produced metal dichalcogenides nanoparticles of tungsten and molybdenum disulfide is exposed. The effect of different conditions (temperature, concentration in oil, contact pressure, among others) is also presented in this first section. The research work done for this thesis is divided in two main parts. In the first one, the nanoparticles were first morphologically and chemically characterized and their tribological potential in base oil was investigated on smooth and rough surfaces under different test conditions. Then, their tribological behavior in the presence of additives that are commonly used in industrial applications, in the boundary lubrication regime and at 100°C was studied.In the second part, the use of nanoparticles for a gearbox application was explored. The potential of the nanoparticles in base oil and in the presence of a commercial package of additives for this application was studied, first at the laboratory scale, and then in scaled-up tests with gearboxes used in cars. The results suggest that nanoparticles can be used to increase life span of the mechanical parts of gears.

Tungsten Disulfide Nanoparticles as lubricant additives for the automotive industry

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Written by Jeff Holder

Co-Founder of NanoSlick Lubricants!