Many times someone will say ... "Hey, the oil filter must have been doing a good job because the UOA "Insolubles %" was low". But it's also been mentioned that the "Insolubles %" is an insensitive and bad parameter to measure the oil cleanliness to reflect oil filtering effectiveness.
So I went and found 4 UOAs on BITOG from Blackstone that included the ISO Particle Count data. The data was compared and graphed - see attachment below. Note that the "Insolubles %" doesn't really correlate well with the ISO Particle Count data. I know this is only 4 data points, but I'm thinking if you did this with many more UOAs the same non-correlation would hold true. So in order to really judge how well an oil filter functions based on a UOA, the ISO PC data is more telling than the "Insolubles %".
Attachment shows up smaller than it was, so the board must resize attachments. Tried getting a larger one to show up, but no-go.
So I went and found 4 UOAs on BITOG from Blackstone that included the ISO Particle Count data. The data was compared and graphed - see attachment below. Note that the "Insolubles %" doesn't really correlate well with the ISO Particle Count data. I know this is only 4 data points, but I'm thinking if you did this with many more UOAs the same non-correlation would hold true. So in order to really judge how well an oil filter functions based on a UOA, the ISO PC data is more telling than the "Insolubles %".
Attachment shows up smaller than it was, so the board must resize attachments. Tried getting a larger one to show up, but no-go.