Pearl white is easier to keep clean looking as compared to refrigerator white it seems. As long as your car isn't parked in the open, in a high pollution area, it should be fine. With my white Altis, whenever i park next to EDSA and it rains, the paint instantly becomes gray and it takes a hard wax job to remove the pollution smudge.

Tried XCS in my last fill up. Seems to be doing better than Xtra however i've been doing highway driving over the weekend. I'll see for sure in the next two to three tank ups.