Quote:
Originally Posted by Billup
Paranoia. Oil flows through the center and extrudes through the inner filters and travels outwards. Majority of sediment is caught in the fibrous material that makes up the filter and remains trapped, which is why mileage per filter is kind of important. The residual leftovers draining back in is minimal. However, a filter that is not changed at the right interval loses integrity and can cause more damage than the "drip down" you are worried about.
Kind of like the filters for CNC wire EDM machines. Filters out the sediment from metals in the water, but as time goes by, the abundance of trapped materials causes poor / minimal filtering, which causes poor performance and more work for the machine. Same concept for a combustion motor.
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Reminds me of this video from BMW...