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We conducted the installation of a nitiFilter®, the permanent and self-cleaning oil filter, at an oil change interval of 28 318 km. We did not change the oil. The nominal values used for a 5W30 oil are 63 cSt viscosity at 40°C and 10,6 cSt viscosity at 100°C.
After proceeding to an oil analysis, here are the results :
Viscosity at 40°C – cSt
Viscosity at 100°C – cSt
Contaminant : Silicium – ppm
Wear and tear : Iron – ppm
A month later
As predicted, the oil seems to be very degraded. We run another oil test a month later at 31 342 km. We can notice that the results get better, except for one of the wear metals :
Viscosity at 40°C
Viscosity at 100°C
Contaminant : Silicium
Wear and tear : Iron
As only one of the wear metals is degraded, we decided to keep the oil.
8 months later
We run another engine oil testing a month later at 39 003 km, that makes around 11 000 km with the nitiFilter®.
Viscosity at 40°C
Viscosity at 100°C
Contaminant : Silicium
Wear and tear : Iron
Oil is still OK !
2 years later
Finally, we run another engine oil test 2 years later at 52 693 km, that makes around 25 000 km with the nitiFilter® and a more than 4 years old oil.
Viscosity at 40°C
Viscosity at 100°C
Contaminant : Silicium
Wear and tear : Iron
Oil is still OK and close to the nominal value… So are you convinced that oil change is not always necessary with the right product ?
Find all oil analysis results for engines equipped with nitiFilter®
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