Tom,tditom said:I can speak from personal experience that an oiled filter (Amsoil, in my case) had no perceptable change on performance.
I did need to replace my MAF within 50 K miles of beginning of use, tho. Needless to say, I have never gone back to an oiled filter.
WB9K- I see you are near Detroit. I can make you a good deal on my Amsoil oil-foam filter, if you want one for your Jetta. I think most folks would agree that it is the equal to the K&N. PM me if interested.
If you look at the links I posted in last week's thread, you'll see that the worst filtration in BOTH of the tests was by oiled foam filters (one test used Amsoil, the other used HKS). WAY worse than K&N. The testers were surprised by this, and so was I. Further, while the K&N filters did pass more debris than paper, it was a lot closer than I think most here would expect. It was for me. So, I think I'll pass on that Amsoil filter.
I'm in Walled Lake. If you need a Vag-Com scan, let me know, I have one with the Key USB interface.