New to detailing, and after reading this forum, I decided to get a Optimum PC kit to work on my neglected truck. Also just bought a new Lexus, and the paint is still in excellent condition and swirl free. Should I still use OP with a polishing pad before I wax? Both cars are a dark gray metallic and parked outdoor. What is a durable and easy to apply wax and sealant should I use? Are the terms "sealant" used for synthetic waxes, and "wax" for carnauba waxes? How durable is the Optimum wax? The amount of different products available is overwhelming!