If it was not for bad luck I would have none at all!

Like the others have said,check the oil pressure with a mechanical guage first and then verify the moisture in the oil, here is what I found out on our Magnum with oil pressure problems,These motors are known to to have oil pressure problems,but really it was the oil pressure sending unit that was giving me false readings. I changed it out and went with a 5w20 synthectic oil and have no problems for the last 6 months, knock on wood.

Maybe the Jeep motors have the same issues.If thats the case it was a cheap fix.

Good luck with it ,

Bob