So I found me some mud puddles in the desert last weekend bypassing the traffic coming back from Vegas. But even before this, where I go hunting in the desert has caused all the fine dust to stick to the frame making it brown instead of black. What would be the best way to get it back to black without removing the factory grease/wax, whatever they put on the frame at the factory? I plan on a lift next year and it will look like shit with a brown frame!