I use S-100 paste wax that is sold at Harley dealers. This wax goes on thin and does not leave white streaks if you get in on the trim. I have a 05 Mustang GT that is black and that is the only wax I have ever used on this car. The one thing about a black car is that when you wash and dry the car, I always wax it right afterwards. The more wax, the better. Once a year I strip the wax off the car with Dawn dishwashings soap and start all over again. Nothing looks better than a black vehicle when it's all done, but it is a labor of love. Do not ever run the car through the carwash. You will regret it! Go to Autopia.com for more information.