In that most recent video, fwiw exactly my thoughts on it. Imo, in this one LSjr used confirmation bias to support his oil filter reuse efficiency increase claim. As noted, he completely ignored rounds of new oil added to the sump combined with break in "taper off" variable and went strictly to the filter particle count to support his claim. So, unlike his video claim, I don't believe he proved it with this one.Compelling? lol
Engines tend to produce the most break in material early in their life.
Break-in tends to taper off until it stabilizes at some unknown time thousands of miles (or hundreds of hours) later.
How about an alternative explanation: dumping the oil several times in short succession as the engine is breaking in results in lower particle counts because…wait for it…the particles are now in the drain pan, and were replaced by new, clean oil.
I like Lake. He seems to be a nice guy, and occasionally has good info in his videos. But, I’m still standing by waiting for any real evidence to his claim that oil filters get more efficient as they load up.