In their information literature K&N have this to say about their oiled air filters “Once the filter oil is properly and evenly absorbed through the cotton, the oil is almost impossible to remove without cleaner, even under extreme driving conditions”.

Richard’s findings on cleaning the MAF sensor would appear to concur.

Chris

2015 Plus 4 Silverlake Blue
(2014 3.7 Roadster Crystal Blue)
(2012 4/4 Sport Black)