
No, you should not use chlorine dioxide (ClO2) to clean your car's interior or exterior surfaces. While effective as a disinfectant in industrial and water treatment settings, ClO2 is a potent bleaching agent and oxidizer that poses a significant risk of damaging your car's materials. It can permanently discolor and weaken vinyl, plastics, and leather, and may cause corrosion on metal trim components. For safe and effective cleaning, stick with pH-balanced automotive-specific products.
The primary risk of ClO2 is its oxidative strength. On a car's interior, it can cause dashboard and trim fading, make leather upholstery brittle and cracked, and degrade the adhesive bonds in your headliner. On the exterior, aside from potential paint discoloration, it can be particularly harmful to clear coat finishes and rubber seals around windows and doors.
For routine cleaning, here are safer, proven alternatives:
The following table compares the effects of different cleaning agents on common automotive materials.
| Cleaning Agent | Dashboard Plastic | Leather Seats | Fabric Upholstery | Paint Clear Coat | Overall Safety |
|---|---|---|---|---|---|
| Chlorine Dioxide (ClO2) | High Risk of Discoloration | High Risk of Drying/Cracking | High Risk of Bleaching | High Risk of Oxidation | Dangerous |
| pH-Balanced Car Interior Cleaner | Safe | Safe (Conditioning) | Safe | Not Applicable | Excellent |
| 70% Isopropyl Alcohol | Safe with Quick Wipe | Safe with Quick Wipe | Safe | Can strip wax if used frequently | Good for targeted disinfection |
| Car Wash Soap | Not Applicable | Not Applicable | Not Applicable | Safe & Protective | Excellent |
The safest approach is to use products designed specifically for the task. Automotive manufacturers test these products to ensure compatibility, giving you a clean car without the risk of costly damage.

Trust me, as someone who's detail-oriented, ClO2 is a hard no. It's not a cleaner; it's a powerful oxidizer. Think of it like using bleach on your car's interior. You might kill some germs, but you'll also bleach your black dash to a nasty pinkish color and ruin the soft-touch plastics. It’s just way too aggressive. Stick with sprays made for car interiors—they’re designed to be tough on grime but gentle on materials.

I wouldn't risk it. My main concern is safety. Chlorine dioxide gas can be harmful to breathe in a confined space like a car cabin. Even in liquid form, if it's not mixed perfectly, you're dealing with a harsh chemical that can easily damage surfaces. It’s overkill for what you need. A simple disinfectant wipe or a spray with diluted rubbing alcohol is a much safer and more controlled way to sanitize your steering wheel and other high-touch areas.


