I know if you replace the whole ccv system on your vehicle with dealer parts problem should go way, but I have seen on others where whole ccv was replaced and oil still got in air filter. Even though my problems were fixed I had a bunch of catch cans around so decided to through one it. I searched through some threads and found some useful stuff but a lot did not look practical or the safest, and sometimes replacing all the ccv stuff doesn't work, so instead of adding to them I wanted to post a new thread how to make a very effective safe fix for this problem in a new thread. In this my catch can is a bit bigger than a soda can, and they are very cheap, various mounting options, a gauge that shows how much oil is built up (even if you have it bad it will take a while for oil to even register on gauge) including catch can I probably have $60 or less into it, but one thing to note and you will see is I have an AEM brute force intake and anything with a heat shield makes it very easy to mount cans. Even if you have stock intake cans are small enough to mount on shock tower.

The pictures show everything you need, I realize some of it is hard to read so if you have any questions or anything just ask.

 

I put a catch can on my Magnum before getting the Jeep. Definitely a good investment, I wouldnt mind putting one on the Heep before too long.

 

can you pm me the details on how you made it and such i have the same problem i have a homebrew intake and the oil drains down to the filter then leaks on the inner fender well

 

And please don't take offense if I don't help but don't pm me asking to make catch can's out of coffee cans or fire extinguishers, catch cans are pretty cheap.