Ask an Expert: Can a car wash damage your car’s finish?

by John and Theresa Kightlinger

There’s something so satisfying about a freshly washed car that sparkles and shines. But did you know that a car wash can actually damage your car’s finish? Before you get too worried, it helps to know that most modern cars have a finish that’s extremely durable and can last under a variety of conditions for several years. And, not all car washes are created equal – some are more likely to damage a car’s finish than others. Here’s what you need to know to select the right washes for your vehicle.

The pros and cons of different car washes

If you’re going to a commercial car wash, there are generally two types – the more “old- school” kind with roller brushes, and newer ones with cloth scrubbers. Which one can do more damage? The answer might surprise you.

While car washes with roller brushes may look more abrasive, they are actually less likely to damage your car because they hold on to less debris. On the other hand, cloth scrubbers can hold onto dirt or even small bits of gravel, which can scratch a car’s finish. Either way, if you’re in line behind an extremely dirty car, it might be worth coming back another time, just in case that dirt ends up scratching your car.

With this in mind, you may think a third option – “touchless” car washes – are safer. These car washes use high-pressure water and cleaning solution to clean a car without touching it. However, keep in mind that while these car washes don’t touch your car, they likely make up for it with more abrasive cleaners. A little bit of scrubbing is also necessary to remove most types of grime – just choose your car wash carefully based on how dirty your car is.

While at a car wash, you can also skip most of the extras. Waxes might give your car a nice look for a few days, but can quickly wear off and aren’t always worth the expense. You should also get the undercarriage washed a few times per year, especially if you live in a cold or coastal climate where road salt may increase the risk of rust.

Washing by hand is best

The safest option for washing a car is by hand. This way, there’s much more control over what comes into contact with your car’s finish. Even here, be careful to use different sponges for the auto body versus the wheels. An abrasive sponge likely will leave scratches on the paint but would be beneficial for cleaning grime off your tires.

When washing your car, you’ll want to use mild cleaners and rinse frequently and thoroughly. Don’t set towels or sponges down on pavement or gravel while washing to avoid picking up dirt and debris.

Find a local shop to touch up your paint

If your car is scratched in a car wash or the finish is otherwise damaged, find a body shop near you that specializes in exactly what you’re looking for, or even one that specializes in your car’s specific make and model.

John and Theresa Kightlinger own My Body Shop at 401 N. Clinton St., Stockbridge. The couple have lived in the area and raised their children here over the past 20 years. John has been in the auto body business since 1985, and Theresa began work at General Motors after high school. Between the two, they have been working on cars for more than 75 years.