don't do this when cleaning a car

Washing an automobile on a regular basis protects it from the natural elements that harm the finish. The Car Care Council recommends the following dos and don'ts when it comes to a do-it-yourself car wash:

• Don't wash cars in direct sunlight. Do wash cars in shade or in cooler temperatures in the early morning or late afternoon.
• Don't use dish detergent. Do use a formulated car wash.
• Do fill your bucket with warm water.
• Do use a soft terrycloth towel or washing mitt.
• Do spray the car often with water.
• Don't scrub the car all at once. Do complete one section at a time, rinsing repeatedly to prevent the soap from drying on the paint.
• Do use soft terrycloth towels or scratch-free fabric to dry the vehicle.
• Don't neglect waxing the vehicle. Do prep the car for waxing using cleaner/polish to remove contaminants.