Originally Posted by intenseblu
...their least desirable trait is the use of the k&n oiled filter (it can harm the MAF sensor if enough oil makes its way down the intake path ... very common thing with k&n filters ... even if you oil it yourself sparingly unlike the factory) ...
You need to read this article from K&N. They are a very good company and stand behind their product. This article dismisses the urban myth of oil faulting the MAF sensor.
http://www.knfilters.com/MAF/massair.htm