VTT Technical Research Center of Finland, Dr. Prof Kenneth Holmberg

Summary analysis of test results from lubrication with Nanol

16 field tests and 4 bench tests with 0.3% Nanol in ship engine oils, and 15 laboratory tribotests with 0.3 – 3% Nanol in lubricant oil has been carried out between 2010 and 2017. In ship field tests 4% reduction in fuel consumption was observed for middle size (1600- 0000 kW) diesel engines and 1-2% reduction for large (12600-15600 kW) engines with the use of Nanol additives.

Bench test single observations showed 4% reduction in friction, 0 & 3% reduction in fuel consumption and 1% increase in torque and power in various size (60-4000kW) diesel engines with the use of Nanol additives.

Roller bearing test - Fraunhofer Mikrotribologie Centrum

Summary of test results

In a thrust roller bearing test, it was discovered that Nanol reduces friction and prevents the formation of white etching cracks compared to the reference.

The cylinder rollers and the bearing race show an intact surface after the test:

  • No embrittlement and no corrosion
  • No indication of lubricant degradation

ROLLER BEARINGS – TEST BY SCHAEFFLER GROUP

Summary and conclusions of test results

Nanol lubricant additive was tested at Schaeffler Group in order to assess the influence of Nanol on formation of WEC (White Etching Cracks) in roller bearings.

The test reached a running time of t = 422 h. Failure originated from the surface area of the bearing and was not caused by WECs. Consequently, the oil with Nanol reached at least a tenfold WEC lifetime in comparison with the reference oil (WEC formation at 30-42 h) at mixed friction conditions (at the FE8-25).