I want to resurface my old driveway. It's on a slope, so standing water is not a problem, but it's very old. Most of it got quite light in color, and there's several large, flat, lower spots, about 1/8 inch deep. There's no deep holes or deep cracks. I know that before resurfacing I have to remove loose parts, clean, and fill up all these lower areas to make driveway even. What do I use and how to I fill these areas up? Isn't a hole patch only for deep but small areas?