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I know this has been done to death on the internet but I've never seen these K&N videos before.

http://www.knfilters.com/MAF/massair.htm

Found the second one interesting about airspeeds on panel filters.

In the case of the ST assuming the engine takes in a full 2.5l of air each rev at 6500rpm this equates to roughly 150mph at the MAF sensor

The panel filter area is about 10x that of the MAF therefore the max airspeed at the panel filter is 15mph.
That ain't gonna blow the froth off your coffee never mind oil off your filter.

Interesting they did not talk about cone filters though as the filter neck is often the same diameter as the MAF.
This would put the airspeed at the neck at 150mph too. Now thats a different story altogether.

Convinced me to stop worrying about oiled panel filers at least, as I'm sure was K&N's objective.
Worked to a degree, I went JR/Jetex instead.
 

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Just been out to check if I had the gasket at the top of the filter cassette, which I don't.


While I was there checked for signs of oil on the engine side of the filter.

Dry as a bone.


PS

Also noticed some grit in the bottom of the airbox had mysteriously disappeared.
Its now clean as a whistle, can't say the same for the filter.
Should have brought the dyson out.
 
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