Wash the car either by hand or in an automatic car wash. Rinse the car first with a light stream of water to loosen any dirt on the painted surfaces. Soak any dead bugs with water and car washing solution, then wipe off. Wash the car out of direct sunlight as waterspots can form if water is allowed to evaporate from the painted surfaces.
Use only waxes with carnuba or synthetic formulations. Keep a good coat of wax on the car to protect the surface from contaminants. Use only high quality paint care products as available through your dealer or specialty boutique.
Wash the car often in the winter months to keep road salt off the car. Touch up any paint damage with matching paint. Do not allow moisture to collect under a car cover if one is used.