Vinegar has become a popular ally among drivers who want to keep the car clean and in good condition without resorting to expensive products.
This product has various uses for the vehicle’s windows and can be useful for solving some of the most common problems that arise during cleaning.
Cleaning and degreasing the glass
The most recommended for this task is distilled white vinegar, since it leaves the least residue on the surface. Its main component is acetic acid, to which disinfectant and degreasing properties are attributed, capable of leaving the windows clear.
For this reason, it is used to remove insect remains, bird droppings, tree sap, and hard water stains, which usually have a high mineral content. It is also mentioned that, in cold or humid climates, it can help reduce condensation inside the vehicle.
To apply it, it is recommended to dilute it in equal parts with water and use a microfiber cloth to avoid scratches, since pure vinegar in excess could damage rubber, plastic, or the car’s paint with frequent use.
The belief about frost and ice
The other most widespread use is as a homemade method to delay the formation of frost or ice on cold mornings. The explanation that circulates is that the acetic acid in vinegar lowers the freezing point of water, which would make it harder for ice to form or adhere to the glass.
This is a chemical principle: mixing a solute with water can lower its freezing point, something similar to what happens with salt.
However, there are no studies or concrete and verifiable data that confirm how much that freezing point is reduced when diluted vinegar is used, or how effective it is against severe frosts.
For that reason, this use remains more of a popular belief among drivers than a solution with proven scientific support.
Along with this trick, other home remedies are often mentioned with the same level of anecdotal support, such as rubbing the glass with raw onion or with a cut potato, although they also lack verifiable evidence to back them up.