IMO, PYB is likely just as good as Motorcraft. A lot of "conventional oils" are really a blend of some kind. PYB, just like Motorcraft, meets Ford's WSS specs for the motor oils. If you want to upgrade from PYB, why stop at Motorcraft? Go full synthetic at least. PP, Mobil 1, QSUD, whatever.
It really depends on how you use the car. If the car is driven 10,000 miles or more a year, then I'd settle for once a year oil change with a synthetic oil and a really nice oil filter, like Fram Ultra. If the car is driven in a very cold climate, I'd consider a 0W20 as long as it meets Ford's spec. If the car is driven 5000-6000 miles a year, a conventional would work out pretty nicely for a once a year OCI.
It really depends on how you use the car. If the car is driven 10,000 miles or more a year, then I'd settle for once a year oil change with a synthetic oil and a really nice oil filter, like Fram Ultra. If the car is driven in a very cold climate, I'd consider a 0W20 as long as it meets Ford's spec. If the car is driven 5000-6000 miles a year, a conventional would work out pretty nicely for a once a year OCI.
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