I have a trip from NC to Pittsburgh coming up at the end of the week in my 06 Titan 5.6. I have PP 5w-30 in now with about 4k on the oil and 9400 on the truck. I am scheduled to change at 10500 which will roll around before I get back (avg trip plus driving is 1300 miles). I have the Valv SynPower 5w-30 (BOGO sale) ready to go in but feel I could be wasting the PP. Should I leave it or change it?