IF-WS2 Delivers Excellent Results in Toyota Engine Oil

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NIS Partners in Japan shared great results of the first phase testing IF-WS2 Concentrate in API SN / 0w-20 Toyota Oil.

1% was the best – it reached more than 11kg (max and still rolling !)


IF-WS2 Delivers Excellent Results in Toyota Engine Oil
IF-WS2 Test results from NIS partners in Japan

Earlier this year, NIS has shared similar great results of testing IF-WS2 based additives for Nynas grease.

Using naphthenic oil of high viscosity and novel nanoparticles of IF-WS2, Nynas’ specialists make leaner high-performance lithium complex grease formulated with fewer components, potentially enabling lower manufacturing costs.

Original Source: nynas.com

A study carried out by Nynas, and Nanotech Industrial Solutions Inc. (NIS) demonstrates that high-performance grease formulations can be made using fewer components with excellent performance for example in four-ball tests. In other words, less can be more – provided that the right ingredients are used in formulations.

It creates almost perfect conditions for the use of nanoparticles, such as fullerene-like inorganic particles of tungsten disulphide (IF-WS2), resulting in excellen high load carrying capacity along with low wear in the tribological contacts,” 

Mehdi Fathi-Najafi is Chief Specialist at Technical Development and Support, Nynas Naphthenics.

IF-WS2 Delivers Excellent Results in Toyota Engine Oil

“It is well known that the use of naphthenic base oil can reduce the thickener content. However, in this study we were able to establish a direct correlation between the viscosity of the naphthenic base oil and the thickener content, the degree of oil separation, and the mobility of the grease at -20°C,” says Mehdi Fathi-Najafi.

In addition, the study looked at the effectiveness of solid additives, comparing the performance of conventional solids such as molybdenum disulfide with that of novel nanoparticles (IF-WS2). Because of their nano size and large surface area, even very limited concentrations of IF-WS2 particles will make a difference in formulations, offering better protection against wear, friction, and extreme pressure.

As shown in the figure, the response of these nanoparticles was significantly greater in Grease A, pointing to the synergism between the NYNAS® T600 and this type of solids.

IF-WS2 Delivers Excellent Results in Toyota Engine Oil

“Treat rates with these nanoparticles are an order of magnitude lower than when conventional platelet particles are used as solids in grease formulations” explains Mehdi.