The last time I had my car detailed, it came back from the shop with swirls in the finish. They were especially noticeable in the bright sun. Detailing experts tell me the swirls mean my detailing job wasn’t properly finished. A thorough detailing will include rubbing an abrasive compound on the exterior of the car in swirls to remove oxidation and even small scratches. Next, you buff the surface with a finer swirl-removing compound and finally, you apply finishing cream to bring up the shine. A good detailing job will last up to two years, if you keep up with maintenance. That means washing your car about once a month and waxing it (not in direct sunlight) 3 to 4 times a year. The best waxes contain the ingredient carnauba because it allows the finish to breathe.