pull your oil dipstick and see if you have weird colored oil at the top of the oil lever, like a light brownish grey and then the lower oil is normal colored. don't run the engine before doing this though. if you feel like its hard to tell, take a pic and post it on here. your temp and everything else is good when it runs? the underside of the radiator cap have any weird slime on it? take a pic if it does, and post it, also
No slime. No oil period, as in there must be a leak somewhere. Besides what I said before, no other problems.