You shouldn't have any problems whatsoever. Some higher mileage/older style engines tended to have leakage problems when fed a full synthetic oil which contained a lot of PAOs in it, which is why the initial offering of Mobil 1 many years ago caused people so many headaches.
But Schaeffer's blend contains 20-25% PAO, so it should not cause any leak problems at all. It's an extremely good oil which has shown some very good oil analysis reports on here in many engines.