Can laundry detergent be used to wash a car? Will it damage the car paint?

[OJake]

Laundry detergent can be used to wash a car and will not damage the car paint. The reasons why laundry detergent can be used to wash a car and the washing method: Reasons why laundry detergent can be used to wash a car: Because the active ingredient in laundry detergent is a non-ionic surfactant, it can remove oil and dirt from the car's surface. Additionally, laundry detergent has a neutral pH value, with minimal corrosiveness, so it won't harm the car paint. Laundry detergent can be used to wash a car, but laundry powder cannot, as it contains sulfuric acid, which can damage the car paint with long-term use. Method for washing a car with laundry detergent: First, rinse the dust and stains off the car from top to bottom with a gentle stream of water. Then, pour out a small amount of laundry detergent, mix it with water, and stir until foam appears. Next, use a car wash brush to scrub the car body, followed by rinsing off the foam with a water gun. Finally, be sure to wipe off any water droplets with a towel to prevent water marks from forming on the car body.

[GeorgeLynn]

Hey, I used to wash my car with laundry detergent when I drove an old car because it was cheap and convenient. But in reality, using laundry detergent to wash your car can actually damage the paint. Laundry detergent is a highly alkaline cleaner designed for cleaning fabric fibers, not tailored for car paint. Its ingredients can corrode the clear coat, and over time, it can make the paint look dull, even causing fine scratches or peeling. After I switched to professional car wash soap, my car's shine improved significantly. That kind of car wash soap has a neutral pH and contains protective additives. It produces rich foam during washing, gently removing dirt without leaving residue. Don’t risk damaging your car’s paint to save a little money—repainting is much more expensive. I recommend buying a bottle of dedicated car wash soap—it’s simple, safe, and keeps your car looking new.

[ArabellaDella]

I used to take the easy way out by washing my car with laundry detergent, only to find the paint becoming increasingly rough. Laundry detergents contain bleach and highly alkaline substances, which are very harsh on car paint. They gradually erode the paint layer, causing oxidation and fading. Now, I've switched to a dedicated car wash shampoo. Although it's slightly more expensive, the results are much better. That product produces fine foam, rinses off cleanly without leaving streaks, and helps protect the wax layer, extending its lifespan. In the long run, it prevents significant damage that would far exceed the cost of car wash shampoo. Remember, washing a car isn't just about removing dirt—it's also about maintaining the vehicle's appearance. Try a pH-neutral car wash shampoo and add some water to soften it during washing for much higher safety.

[OEmery]

Using laundry detergent to wash your car is definitely harmful to the paint. Laundry detergent is designed for cleaning clothes, and its strong alkaline components can damage the clear coat on the car's surface. I've seen a friend's car develop cracks and lose its shine because of this. Switching to a professional car wash solution is the smarter choice—those with neutral formulas effectively remove dust without harming the paint. Don't take the risk; protecting your car's paint is part of routine maintenance.

[LeSimon]

Using laundry detergent to wash cars is indeed convenient, but it can damage the car paint. Its chemical composition is not designed for automobiles - the high alkalinity can cause the paint surface to thin and become brittle. I once tried saving money by using laundry detergent, only to end up with damaged paint that required polishing. In comparison, professional car wash solution can be used multiple times per bottle, offering much better cost performance. It won't affect the wax layer and keeps the car shiny and new. The key is long-term savings on repair costs.

[MacPatrick]

I suggest not using laundry detergent to wash your car, as it can damage the paint. Laundry detergents contain bleach and enzymes, which are effective at removing stains but are corrosive to metallic paint surfaces. Long-term use can cause the paint to lose its shine and even accelerate aging. Once when I tried it, my car's paint became prone to cracking, and I regretted not switching to a dedicated car wash soap sooner. That pH-neutral car wash soap is gentle yet effective, preventing water spots and contamination while maintaining the paint to prevent accidental damage. In fact, washing your car isn't just about cleaning—it's about protecting your investment. Choosing the right product helps avoid unnecessary trouble.