These standard tests can get us some hard facts about oil filters.
Multi-Pass Filter Test
ISO 16889
ISO 4548-12
ISO 19438
SAE J1858
These testing services are available in the states. I hope some car clubs send filters for testing else we're left with the manufacturer's own test result statements. So far I haven't found a comparative using any of these tests.
If you happen to find oil filter comparisons using these tests please don't hesitate to post the link here.


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