Another person trying to defeat what the manufacturer intended.
Are you serious?!?!?! K & N placed oil on the filter FOR A REASON!!! Then you come by...and by looking at it you determine that it'll stop certain particles not big enough to hurt your motor?!?! And then you can estimate that "Only 1-3% more particles are entering your intake"?!?!
This thread is great!!! The dust will "settle on the cyclindar walls when the engine stops but once the engine is running and igniting that feul, the dust will run its course through the head, then the cyclindar, then back out the head, then out the exhaust".
HAHAHAHAHAH!
Don't complain to anyone when you have problems my friend!
BTW--
The filter oil on the K & N will mess up the MAF...not the O2 sensors.