Best Fram filter for longer service w/track use/HPL oil

What specifically in the YT testing is an issue?
It’s not following ISO 4548-12 protocol. The tests need to be standardized and repeatable to mean anything. It’s a cool experiment for entertainment purposes.

At the very least I’d like to see him run the tests multiple times with the same results. That would at least resemble the beginnings of test data to compare.
 
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It’s not following ISO 4548-12 protocol. The tests need to be standardized and repeatable to mean anything. It’s a cool experiment for entertainment purposes.

At the very least I’d like to see him run the tests multiple times with the same results. That would at least resemble the beginnings of test data to compare.
Ah ok so PF. Got it.
 
Mann-Hummel owns Purolator
Ok got it. I have the Fram Endurance so will give that a whirl which of course I will have exactly zero way to telling it's better/worse but I sure will feel good trying a BITOG favorite!
 
Fram Endurance installed. Odd that the holes are smaller than the Mann but have an overhang of thin material so they push past. Weird.
 
Ok here you go. It just felt like this soft "felt" ring covered more of the central tube than the Mann filters I usually use. No issue beyond pushing it harder to get it on the spline in the filter housing.

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Would you be able to tell me/point me to what the efficiency/micron data are for the Mann filters (like what I used in my VW prior to the Fram)?
What model cartridge filter was the Mann? I'd look at their website to see if they give any efficiency numbers.
 
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