Not a fan of K&N air filters on this car. Sorry.
Not only does the oil cause MAF issues (it fouls the MAF, particularly after a "clean and reoil") but I saw increased silicon in the oil when doing used oil analysis. Unless there is a fresh RTV seal in contact with the oil, silicon has only one possible source...
Sand.
K&N lets extra sand and dust in your engine over a regular paper air filter.
I would go back to a Mahle or Mann filter. My silicon dropped to zero when I did.
Current Fleet:
2016 Tundra Crewmax 4WD 1794
2005 MB S600 (126K, Michelin AS4, HPL 0W40)
2005 MB SL600 (55K Michelin AS4, Mobil 1 0W40)
2004 V70R (143K, six speed M66, HPL 5W40)
2004 XC90 (235K, HPL 0W30 Euro)
2002 V70-XC (295K, HPL 0W30 Euro)
2002 V70-T5 (225K, IPD bars, Bilsteins)
2001 V70-T5 (125K, IPD downpipe, cat back and other mods)
1932 Packard Sedan (straight 8, dual sidemounts, original paint and interior, Shell Rotella 15W40)
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