Using these Cosmis XT - 006R wheels is straightforward. First, make sure you have the right aftermarket conical/cone seat 60 - degree lug nuts. When installing, double - check the compatibility with your vehicle as it's a universal product. You may need to make some minor adjustments for a perfect fit. As for maintenance, regularly clean the wheels with a mild soap and water solution to keep them looking white and new. Avoid using harsh chemicals that could damage the finish. If you notice any scratches or chips, it's a good idea to touch them up promptly to prevent rust. Before each long trip, check the lug nuts to ensure they're properly tightened.