So I checked my oil the other day when I was filling up and it wasn't even touching the low mark on the dipstick. I didn't really worry too much because I've read on here that the dipstick is not the most accurate and the car was warm. So I checked it the next morning and it was still below the low mark. So I put in a quart of oil. Now when I check it the oil is way above the full mark. I wipe it off and check again and it's at the perfect level. But the first check it's always way above the full mark. Do you think I overfilled it? Should I be worried?