My girlfriend's 07 limited with the hemi is a few miles over for an oil change. I checked the oil today after it had sat all night. The oil was about halfway between the tip of the dipsticks and the add line. We've only owned the jeep for a year. Shortly after we first got it, we had it serviced and used synthetic oil. They told us that it should be good for 5k miles. As I mentioned, it is just now a few miles over due. She works only 10 minutes from home, so all week it is driven short distances, mostly 35 mph. Is this oil usage normal? I can't tell that it is leaking anywhere.