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I’ll say these things here despite the fact that I pay more than the minimum necessary in order to get better oil filtration:

1) The best-filtering oil filters on the market are Frams, based on ISO standard testing.

2) A tool as crude and inappropriate as a UOA will never show an oil filtration difference unless you have a very abnormal contaminant load. A particle count, on the other hand, can show oil filtration differences.

My own data shows Fram ToughGard filters significantly cleaning up engine oil over the course of the drain interval, compared with new oil out of the same bottle.

You pays your money and you takes your choice.
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