How can you tell? Is it because of the reddish color? I watched a youtube video on cleaning a K&N and when he oiled it after it was cleaned it turned a red color.
On the first above filter pic, I cleaned it really well using the K&N and it's 2 days dry now. I did not oil it, that is the color it came out. It was a fairly dirty brown when I first took it off, but still had a red color to it. The other side though, now after cleaning is kinda yellowish, here's a pic...
I wonder if I took the factory oil off, although every link I search on with the above part number said it's non-oiled...
