it's not the easy stuff that comes off like Mud i'm talking about, it's the royal PITA stuff like tar and sap. The sides get filled with more specs of road tar than you'd think there really would be, and the top you discover all the shades of sap that have dripped on the truck even if you don't park under a tree lol. Trust me white is almost as bad as black for keeping clean. Way easier as far as swirls, practically invisible on white, but still a royal PITA for keeping clean