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Old September 11th, 2010, 13:54   #35
Join Date: Aug 2010
Location: Northern NJ
TDI(s): 1998 Jetta

Originally Posted by Drivbiwire View Post

That's the dirt let thru after just 501 miles of driving on a NEW FACTORY OILED K&N
For a more fair and complete comparison from "Bob Is the Oil Guy" site see the following link:

Why not let the members read Bob's actual report and make their own decisions? Though Bob's tests show that filters can differ in their ability to stop particles, it's not as extreme as comparing a completely clean after-filter patch to an unused filter patch.

I've been researching to determine if I should purchase a K&N filter (for my gas-drinker, not my TDI) and, after reading Bob's original article and looking at his photos, I found this particular photo to be misleading.

Last edited by Jtroy; September 13th, 2010 at 06:41.
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