My Frontier is just about three weeks old. I've washed it twice since I got it, both times using Meguire's car wash soap. This afternoon, while washing the lower part of the rear fenders and the lower sills under the doors (crew cab), I noticed the paint looked dimply. I don't remember seeing that the last time I washed it but I may be mistaken. It's not something that you can see just by looking at the truck, you have to be close to it such as when washing. Is this normal? It looks almost like it's a different part of metal that was welded. It's not on the doors or upper panels, just on that very lower part like under where that clear plastic piece is that they put to protect that part of the vehicle.