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- Oct 3, 2023
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This is part 2 of the previous oil analysis. The filter has been dissected here:
https://bobistheoilguy.com/forums/threads/donaldson-p551132-cut-open-new.378266/#post-6981129
The oil was drained:
A particle count was done to gauge filtration performance for this half of the oil service. While the filter did a decent job at keeping smaller particles down, a minor media breach from a manufacturing defect has confirmed the accuracy of WearCheck's particle count of detecting small levels of larger particles.
Iron was pretty much only wear metal that trended upward with miles linearly, can be co-related to both filtration and driving behavior. I did flogged the engine spiritedly during this run. Viscosity trended upwards towards 12 at 11.9. The oil could have gone much longer even though oxidation numbers are up with an outstanding base number of 9.53 If I did choose to leave it in the sump.
Currently running 5W-40 SuperCar with a FRAM FE3600, yeah I know absolute @OVERKILL like this guy but hey. I'll likely return doing another run with this Donaldson Synteq filter another time, hopefully to see some normalized particle numbers without possible anomalies seen in this one.
Particle count > Particle size greater than
3158 > 4 microns
1720 > 6 microns
293 > 14 microns
99 > 21 microns
15 > 38 microns
2 > 71 microns
ISO4406 cleanliness code : 19/18/15
https://bobistheoilguy.com/forums/threads/donaldson-p551132-cut-open-new.378266/#post-6981129
The oil was drained:
Post your latest oil change
2018 Nissan Pathfinder 3.5L 4,250 miles on oil. Out/off. M1 Euro 0w40, Parts plus filter, 1 can LM MoS2 In/on QS Euro 5w40,Hengst filter, 1 can LM MoS2
bobistheoilguy.com
A particle count was done to gauge filtration performance for this half of the oil service. While the filter did a decent job at keeping smaller particles down, a minor media breach from a manufacturing defect has confirmed the accuracy of WearCheck's particle count of detecting small levels of larger particles.
Iron was pretty much only wear metal that trended upward with miles linearly, can be co-related to both filtration and driving behavior. I did flogged the engine spiritedly during this run. Viscosity trended upwards towards 12 at 11.9. The oil could have gone much longer even though oxidation numbers are up with an outstanding base number of 9.53 If I did choose to leave it in the sump.
Currently running 5W-40 SuperCar with a FRAM FE3600, yeah I know absolute @OVERKILL like this guy but hey. I'll likely return doing another run with this Donaldson Synteq filter another time, hopefully to see some normalized particle numbers without possible anomalies seen in this one.
Particle count > Particle size greater than
3158 > 4 microns
1720 > 6 microns
293 > 14 microns
99 > 21 microns
15 > 38 microns
2 > 71 microns
ISO4406 cleanliness code : 19/18/15
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