As an automotive care specialist with years of experience in the industry, I've seen a wide range of car wash methods and their effects on vehicles. It's a common concern among car owners whether a car wash is good or bad for their car. The answer to this question isn't straightforward and depends on the type of car wash being used.

Firstly, the quality of the car wash is paramount. Some older car washes still use abrasive brushes, which can indeed leave small scratches in a car's finish. These scratches can be a result of the hard bristles on the brushes, which, when combined with dirt and debris in the water, can act like sandpaper against the paint. Over time, this can lead to a dull and worn appearance. It's essential to avoid these types of car washes if you want to maintain the pristine condition of your car's paint job.

On the other hand, there are touchless car washes that use only high-pressure water jets and detergents to clean the car. This method is considered safer because it doesn't physically touch the car's surface. The high-pressure jets are capable of removing dirt and grime effectively without causing damage to the paint. Detergents used in touchless car washes are also formulated to break down and lift dirt away from the surface, further reducing the risk of scratches.

However, even with touchless car washes, there are factors to consider. The pressure of the water jets is crucial; too high, and it could potentially damage the paint or underlying components. It's also important to ensure that the detergents used are of high quality and are designed not to strip away the protective layers of wax or clear coat that protect the car's paint.

Another method is the self-service car wash, where you have control over the cleaning process. This can be a good option if you're meticulous about how you clean your car and what products you use. However, it requires time and effort, and if not done correctly, it can lead to uneven cleaning or potential damage.

Hand washing is often considered the gold standard for car care enthusiasts. It allows for a gentle and thorough cleaning, using soft cloths and appropriate products. Hand washing minimizes the risk of scratches and swirl marks, provided that the wash mitt or sponge is regularly rinsed to avoid trapping dirt particles that can scratch the paint.

In conclusion, whether a car wash is bad for your car largely depends on the type of car wash and how it's operated.
Abrasives brushes should be avoided, while touchless car washes using high-pressure water and quality detergents can be a safer option.
Self-service and hand washing offer more control, allowing for a careful and detailed cleaning process that can protect your car's finish. Always look for car wash facilities that prioritize the care of your vehicle and use methods and products designed to maintain the integrity of your car's paint and finish.

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Some older car washes still use abrasive brushes (instead of cloth), which can leave small scratches in a car's finish. ... Another safe(r) bet is the touchless car wash, using only high-pressure water jets and detergents to clean the car -C without physically touching the car.Jun 30, 2010read more >>