Change Oil reminder kicked in at 5300 miles of my current oil which happen to be the normal old non-synthetic oil. Per the owners manual, if the oil light comes on you have to change your oil within 500 miles. 500+5500= 6000 miles which is what the owners manual claim that our oil is good for anyway. HA!
Like I said, I've seen another 10 Liberty with the oil change light on at 2500 miles and a Dodge Durango with the oil change light on at 2000-3500 miles. The light is only based on how hard you push your engine. I'm sure that if I beat the living piss out of my car then my light would have came on much sooner then this. When I change my oil with synthetic AND drive the way I do now, I'm sure that at 6000 miles, I will not see the light.... although I will still change the oil at 6000 miles.