Is it okay to occasionally use dish soap to wash a car?

1 Answers
LauraFitz
07/29/25 3:52pm
Yes, but it's best not to use dish soap to wash a car because dish soap contains alkaline substances that can corrode the car's paint and rubber/plastic components. Here are some precautions for car washing: 1. Avoid washing the car under direct sunlight: This can leave dried water droplet marks on the car body, significantly affecting the post-wash appearance. Whether you're washing the car yourself or taking it to a car wash, avoid washing it in the sun. 2. Avoid using anything other than soft water for washing: This includes hot water, alkaline water, and hard water. These substances can damage the paint. Using hard water to wash the car may leave marks and a film on the surface after drying. 3. Avoid using high-pressure water streams to wash the car body: Excessive water pressure can damage the car's paint. If there is stubborn dirt or mud on the car, soak it with water first before rinsing. Use dispersed water streams for spraying. 4. Avoid adding random cleaning agents: Do not use laundry detergent, stain removers, or low-quality soap when washing. These cleaning agents contain alkaline substances that may strip the oils from the paint, accelerating paint aging. Generally, no cleaning agents are added when washing a car. 5. Avoid improper wiping: There are two main issues with wiping: using unqualified cloths and incorrect wiping methods. If wiping is necessary, use a soft cloth or a clean, soft sponge. Wipe in the direction of water flow, gently from top to bottom, and avoid circular or horizontal wiping motions.
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