Hi, we use a Wen profesional orbital polisher - worth about $100. Always work in the shade. When cleaning for spring, we use UAP wax and grease remover, apply by rag. Wash the car. Then use the polisher to apply one coat of 3m super fine rubbing compound. Let dry & buff with polisher. Next, we use Liquid Glass. It is a synthetic polish. We generally use two coats applied by polisher, buff after each coat. Finally, we do two coats of carnuba wax, buffing after each coat. I do this once in spring, and again in the fall.

The polishes and rubbing compounds take a small bit of the paint off, but this cleans the paint, making it look new. Because they are synthetic, polishes do not build up, which wax does. Wax, does not sand it, but seals well. Discreetly ask at a local detail shop what they use, and see if they will sell you 500ml. It may sound like a lot of work, but once you know wht to do, it becomes easy, taking a day or so. Hope this helps.