Can Expired Windshield Washer Fluid Be Used?

[VanErin]

It cannot be used. No matter how good the windshield washer fluid is, it becomes useless once it deteriorates. Therefore, when purchasing windshield washer fluid, car owners should first check whether the product has exceeded its expiration date. Secondly, they should look for any sediment in the fluid, as its presence indicates that the fluid has deteriorated. Additional Information: 1. High-quality windshield washer fluid is made from deionized water and various environmentally friendly additives, offering functions such as cleaning, antifreeze, antistatic, and anti-corrosion. Some superior-quality fluids may also feature rapid snow and ice melting, anti-glare, and anti-fog properties, significantly enhancing driving safety. 2. Inferior-quality windshield washer fluids are often diluted with water and alcohol, which not only damages the gloss of the car's paint and the hardness of rubber strips but can also cause color differences, swelling, or dissolution in rubber or plastic components in severe cases.