I was contemplating removing my dip because it has started to look pretty damn dull. It didn't help that a bird dropped an egg on it while I was at work one day (on the hood) and it was hot that day so it created some more tears/pinholes in the dip. But, I did some searching online on how to make it look new again, and lo and behold, tire shine..... makes sense... its made to shine up rubber tires, so why wouldn't it work on dip? I used Stoner's More Shine. Cleaned right up, and now looks glossy again! It's held up well for the couple of years it has been on!