Howdy, Oil Eater JK,
Welcome to the Forum!
This here is the "welcome to the forum" page. You might get more answers by posting in the JK Wrangler section.
If you can include how much oil you're losing and over what period of time, folks might be able to make better suggestions than "Didja check the plug" and "Didja tighten up on the oil filter".
We also have a handy search function on the main page. Someone in a JK may have already crossed this concern as well. Check it out!
So, Welcome, and I hope these good folks on the forum can shed some light on your issue.