Last saturday I drove from Jacksonville FL to Durham NC. Left FL with 6,150 miles on my crosstour with the oil level spot on. Arrived in NC with 6,645 miles. The next morning (Sunday) I checked the oil and noticed it was 1.5 qts low. Added 1.5 qts and continued to drive for another three days. Changed the oil on Wednesday (FIRST OIL CHANGE) with 7,128 miles, Mobil-1 0W-20. Returned to FL yesterday (Sunday), 515 miles driven. Current odometer reading is 7,977, checked the oil this morning and the oil level is perfect. Anyone have any ideas on why I was 1.5 qts low the first trip and not the second? Should I be concerned with oil blow by, faulty oil rings,...? Should I take it to the dealership, to atleast have them annotate it in my profile?