6 Car Wash Mistakes That Could Damage Your Vehicle
How to avoid common car-washing mistakes that can leave behind scratches, streaks, and long-term damage—and what to do instead
Washing your car regularly has many benefits. Wiping away dirt, salt, and other debris makes your ride look shiny and new in the short term and helps protect it against damage and corrosion over the long term.
But there’s a catch: If you wash your car incorrectly, you could be doing more harm than good. Protect your vehicle’s paint by avoiding these common car wash mistakes.
Mistake No. 1: Choosing the wrong drive-through car wash
Avoid car washes with foam and bristles altogether, says Marcus Ervin Clark, stock manager at Keen’s Body Shop, a AAA Approved Auto Repair facility with locations in Ohio. Dirt, sand, or even rocks removed from the car in line ahead of you can get caught in the car wash brushes, he explains, and that debris may then be dragged along your vehicle, leading to scratches and marks in the paint.
Do this instead: Wash your car by hand using wash your car by hand using guidance from professional detailers. If you don’t have time for a hand wash, consider touchless car wash options, which use spray water to remove dirt without direct contact with the vehicle.
Mistake No. 2: Washing with dish detergent
Dish soaps often contain harsh chemicals or abrasives to tackle grease and stuck-on food. That’s great for scrubbing pots and pans, says Eric Shields, an auto damage estimator with Green Township Collision, a AAA Approved Auto Repair shop in Cincinnati. But it’s not so great for your car. Dish soap can strip away protective wax and dry out your paint, leaving it more vulnerable to damage.
Do this instead: Use a car-specific soap, advises Shields. Look for a pH-neutral formula designed for automotive finishes, which cleans your vehicle without harming the wax or clear coat that protects your paint.
Mistake No. 3: Wiping with the wrong material
Old T-shirts, discarded dish towels, and leftover kitchen sponges might seem like easy, inexpensive options for drying your car, but they can cause streaks and even create micro-abrasions on the vehicle’s exterior, leading to a dull finish.
Do this instead: Use microfiber cloths, which are highly absorbent for quick drying and durable enough to handle multiple trips through the washing machine—and also gentle and safe for every part of your car.
Mistake No. 4: Using the same cloth or sponge to clean the car body and tires/wheels
Your tires pick up all kinds of road grit, which gets flung onto the wheels and into the wheel wells. If you clean those areas and then immediately use the same cloth on your car’s body, you’re likely to leave behind new—and unwanted—marks in the paint.
Do this instead: Use two (or more) separate cloths or sponges. Even better, use a wheel brush and a dedicated wheel cleaner to scrub the wheels and tires, and save your microfiber cloths for the car’s body.
Mistake No. 5: Drying in direct sunlight
Parking in the sun will certainly help your wet car dry quickly, but it can dry tooquickly. This can effectively “bake” the cleaning solution onto the car’s surface, says Ervin Clark, leaving behind water spots and residue. Over time, it may even damage the paint finish.
Do this instead: Park your car in a shaded area, and use a microfiber cloth to dry the exterior. If shade isn’t available, wash your vehicle in sections, recommends Ervin Clark. “Soap one section, and then rinse it with water,” he says. “Then just keep doing that around the car.”
Mistake No. 6: Forgetting to add a protective coating
Your car needs a layer of protection, such as wax or polish, to help prevent corrosive substances from sticking to the paint and causing rust over time.
Do this instead: Take a cue from Mr. Miyagi: Wax on, wax off. “I always recommend waxing about once or twice a year,” says Shields, noting that the wax “acts like a sealant.” It helps water bead up and roll off (instead of sitting on the surface), enhances your car’s shine, and may even provide added protection against UV rays.
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Avoiding these common car wash mistakes can help protect your vehicle’s finish, extend its lifespan, and keep it looking its best every time you hit the road.