
Washing frequency depends on the situation. If you frequently drive on muddy roads, it is recommended to wash the car once a week. For city driving, washing every two weeks is sufficient. Here are some details about car washing: 1. Washing too frequently: This can accelerate paint oxidation. For light dust, using a feather duster or soft brush is sufficient. However, if exposed to heavy dust, mud, or rain, the vehicle should be washed as soon as possible. 2. Frequent washing may cause minor damage to the paint: Over time, this can make the car look older. Generally, washing once a week is ideal. If a car goes unwashed for extended periods, rain, acidic components in the air, as well as harmful substances like bird droppings and dust can accelerate paint aging and damage. Damaged paint also exposes the metal body to oxidation due to loss of protection, leading to premature deterioration of the vehicle.

I've been driving for over a decade, commuting to work daily and enjoying weekend road trips. Washing the car once a week is actually quite reasonable, especially if you frequently drive on highways - the front bumper gets covered with insect remains and mud splatters that can corrode the paint if not cleaned promptly. However, pay attention to the washing method. Those automatic car washes at gas stations often have sand particles trapped in their brushes, which can scratch the paint. I personally prefer hand washing on mild weather days, using pH-neutral car shampoo and running water, followed by a spray wax to protect the paint. Actually, washing frequency depends on parking conditions - for outdoor parking like mine, once a week is ideal; if parked in an underground garage, once every two weeks is sufficient.

Having worked in car detailing shops for many years, I've seen too many cases of paint damage from improper washing. Washing your car weekly isn't excessive, but never go to roadside stalls just to save money. The strong alkaline detergents they use are like paint strippers - three washes and your paint will turn dull. Discerning car owners bring their own pH-neutral car shampoo, focusing on removing brake dust and tree sap. Be extra diligent during rainy seasons as acid rain left on the body will etch tiny pits. Of course, new cars can slack for the first three months when the factory clear coat is still thick enough - just resume normal washing when you start waxing.

Car washing depends on the season. In summer, cars parked under trees need frequent washing—tree resin and bird droppings can penetrate the clear coat in just two days of sun exposure, making them irreparable even with polishing. During winter when de-icing salt is used, wash the undercarriage at least every five days, as its corrosiveness is comparable to hydrochloric acid. In spring and autumn when the air is cleaner, going without a wash for over ten days is fine. My car is three years old, and I make it a habit to use a clay bar on the body every month to remove deeply embedded contaminants—it’s far more effective than just washing.


