can i use laundry detergent to wash my car

[Judy]

No, you should not use laundry detergent to wash your car. Laundry detergents contain harsh chemicals, alkaline pH levels, and abrasive agents designed for fabrics, which can strip protective wax, dull the paint finish, and even cause etching or oxidation on automotive surfaces. Unlike pH-balanced car wash soaps (typically neutral pH around 7), laundry detergents often have a pH of 9-11, increasing the risk of damage. For safe cleaning, always use products specifically formulated for cars.

Using laundry detergent can lead to costly repairs. The high alkalinity can break down the clear coat, exposing the paint to UV rays and contaminants. Over time, this may result in fading, swirl marks, or premature aging. Additionally, detergents aren't biodegradable for outdoor use, harming the environment when runoff enters waterways. Instead, opt for automotive shampoos that lubricate the surface, reducing scratches during washing.

Here's a comparison of key factors:

Factor	Laundry Detergent	Car Wash Soap
Average pH Level	10 (alkaline)	7 (neutral)
Cost per Wash	~$0.10	~$0.50
Risk of Paint Damage	High (can strip wax)	Low (paint-safe)
Environmental Impact	Poor (may contain phosphates)	Better (often biodegradable)
Effectiveness on Grime	Moderate (may leave residue)	High (lifts dirt gently)
Recommended for Cars	No	Yes

To protect your investment, wash your car with a dedicated auto shampoo, using a microfiber mitt and the two-bucket method to minimize scratches. Regular maintenance preserves resale value and appearance.

[Parra]

I tried using laundry soap once to save a buck—big mistake. It left a streaky film on my windshield and made the paint look hazy. Now I stick to car wash liquid; it's designed for this stuff and doesn't risk dulling the finish. Just grab a bottle from any auto store—it's cheap insurance for your car's looks.

[LaEden]

From an environmental standpoint, laundry detergents often contain phosphates and non-biodegradable chemicals that pollute water systems when washed into drains. Car wash soaps are typically eco-friendlier, breaking down safely. Using the wrong product harms local ecosystems, so choose automotive-specific options to minimize your footprint. It's a small change with a positive impact.

[StAliyah]

Think about the long-term costs: damaging your paint with detergent could mean a $500 repaint job down the line. Car wash soap costs under $10 a bottle and lasts ages. It's not worth the risk for minimal savings. Invest in the right tools—your wallet will thank you later. Plus, proper cleaning maintains your car's value.

[StPaul]

As a daily driver, I learned the hard way that laundry detergent doesn't rinse clean and can attract more dirt. After switching to a pH-neutral car shampoo, my vehicle's shine lasts weeks longer. It's about using products made for the job—like how you wouldn't use dish soap on delicate fabrics. Stick to automotive formulas for better results and less hassle.