just a quick poll to get a idea of how many user's.
there are many reports of this all over the web. most of it stems from over oiling the filter and not waiting enough time for the oil to soke in properly.Just a small warning for those with K&N filters. You may want to do a throttle body cleaning more often when using those filters. I ran one for 90k miles on my Wrangler (cleaned the filter every 25/30K), and my throttle body would get dirty much faster than with a paper filter. In fact, some of my sensors were getting covered by a coating of the K&N oil/dirt and had to be cleaned to improve idleing/operation.
Keep an eye on your TB, or you will have strange sensor issues or poor idleing/stalling issues after 40k miles or so.
In my case, it may just be that the Wrangler was pulling in much more air because it was a gas guzzler. I'm guessing the Patriot won't need as much air since it uses less gas.