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Old 10-01-2008, 11:45 PM   #10 (permalink)
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Aegean C - '17 Honda Civic LX
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FWIW, I have seen people cite used oil analysis done on the same engine run with a K&N filter and a disposable paper filter, and the oil that was run when the K&N was in use showed higher amounts of silica. Which isn't hard to believe if you think about it, more airflow = less filtration.

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