Can alcohol be used to disinfect the car interior?

[VanJulia]

Alcohol can be used to disinfect the car interior, but the following precautions should be taken: 1. Alcohol is a flammable and explosive product, so it should be wiped dry immediately after spraying; 2. Alcohol should be placed in a well-ventilated environment with the car windows open; 3. Try to spray on the surface of objects and avoid spraying in hidden or hard-to-reach areas inside the car; 4. Do not smoke in the car after disinfection to avoid explosions or fires; 5. Avoid using alcohol to wipe leather seats. Areas in the car that can be disinfected with alcohol include: steering wheel, interior and exterior door handles, window buttons, floor, accelerator pedal, brake pedal, clutch pedal, trunk, and other frequently touched parts.

[DeNathan]

It's actually quite dangerous to see many people using alcohol to clean car interiors. Last time I tried it, the plastic on the dashboard got scratched, and I felt bad about it for a long time. Using 75% alcohol on leather seats can cause the leather to harden and crack, especially noticeable in older cars. The central control screen and piano black trim panels can't handle it either—alcohol dissolves the surface coating, leaving white spots. The safest option is to use a car-specific disinfectant spray, applying it with a soft cloth and gently wiping. If you must use alcohol, dilute it to below 50% concentration and immediately wipe it off with a damp cloth afterward. Be extra careful with the fabric on the ceiling—alcohol can leave unsightly water stains.

[SanRicardo]

As someone who frequently washes their own car, I’d like to remind you not to cut corners when disinfecting the interior. I once tried wiping the rubber door seals with alcohol, and they soon turned white and hardened. The plastic fan blades inside the air vents are particularly fragile—just a few wipes with alcohol made them brittle and prone to breaking. Focus your disinfection efforts on high-touch areas like the steering wheel and gear shift, where chlorine-based disinfectant wipes are much safer than alcohol. For fabric seats, use a foam cleaner with antibacterial properties, and for leather seats, a neutral leather cleaner is recommended. Remember, alcohol is only suitable for metal parts, such as door handle hinges.

[ManuelAnn]

Alcohol disinfection depends on the area. Wiping faux leather materials like the steering wheel can accelerate aging—my friend's steering wheel became sticky from frequent alcohol cleaning. For air conditioning button crevices, you can use cotton swabs dipped in alcohol, but never use it on LCD screens. Leather seats are best cleaned with specialized leather care products, while plastic parts should be treated with neutral cleaners. Gear knobs and handbrake levers can tolerate small amounts of alcohol, but wipe quickly and dry immediately. Be especially careful with sunroof seals, as alcohol contact can cause cracking and water leaks.

[OLaura]

Just asked the car repair technicians, and they said they dread owners randomly using alcohol for disinfection. Alcohol can cause leather to turn yellow and become brittle, especially perforated leather seats—excessive wiping can lead to cracks around the holes. The faux wood trim on the dashboard may fade and turn white. The patina layer on the steering wheel can also dissolve, making it feel sticky to the touch. For disinfection, they recommend using a hot towel above 70°C, which is more effective than alcohol and won’t damage the car. If disinfection is absolutely necessary, opt for quaternary ammonium-based automotive-specific disinfectants, as they are safer.

[Jonathan]

After the pandemic, many people have developed the habit of using alcohol to clean their cars, but it's important to pay attention to the method. The chrome plating on gear shift knobs can easily oxidize and rust when exposed to alcohol—I learned this the hard way. The beeswax contained in leather care products can be broken down by alcohol, causing the seats to lose their protective layer. The solvents in automotive disinfectant wipes are specially formulated and are relatively safe. In fact, opening the windows and letting the car sit in the sun is also a good method, as ultraviolet rays can kill most germs. If you must use alcohol, it's recommended to buy it in a spray bottle, spray it from 20 centimeters away, and wipe it dry immediately—never pour the liquid directly and wipe.