About 4 weeks ago, I applied some 303 by hand to the tires on both of our vehicles. The Fusion is parked overnight in a carport, whereas my van is outside 24/7. After nearly a month, several thunderstorms, several washes, and some dirt roads, both tires still clean up extremely well and have that new look to them. This stuff really works! It won't give you that 'wet' look, but it won't attract dirt either. I highly recommend this stuff to anyone that wants to keep their tires looking clean and new for awhile between applications.