It's a possibility of being bad gas. I try to stay away of the cheaper stations like elcheapo and enmark. Mostly chevron, BP and shell are the stations I goto in my area. But anyways I simply stated I wasn't really sure of what could have been the cause, the only thing that came to mind was the tune. Whether or not that was the cause it just bugs me that I had a problem. On a side note, I was poking around under neath the jeep while the wife was giving it some gas and noticed I do have a bad exhaust manifold leak on the drivers side. So tonight I decided to tackle taking everything apart and getting it prepped for a new gasket and hardware. Well, 3 of the bolts that secure the manifold on plus help secure the heat shield in place are broken off in the head. Again I appreciate all help.