What Causes the Front Windshield of a Car to Be Unclear?
2 Answers
When there is a temperature difference between the inside and outside of the car, the windshield may fog up. Turning on the air conditioning and switching to the defog mode can help. Here are some methods to prevent fogging: Proper Use of Windshield Washer Fluid: Drivers can effectively use windshield washer fluid to address the issue of blurred vision while driving. During regular windshield maintenance, it's important to choose the appropriate washer fluid based on the season and weather conditions. This will make cleaning much more effective and keep the windshield clearer. Applying Window Tint Film: Another option for car owners is to apply window tint film to effectively protect the car's windshield.
I've been driving for over a decade and often encounter issues with blurry windshields. The most common problem is the oil film on the outside of the glass, caused by oil and dirt splashed from trucks mixed with bug residue and tree sap. Over time, it creates a hazy layer, making it impossible to clear even with wipers during rain. Another issue is aging or deformed wiper blades, which leave water streaks and severely affect visibility—usually requiring replacement every two years. Winter fogging is the most annoying, where exhaled warm air inside the car condenses on the cold glass. The most effective solution is to turn on the AC and blow cold air at the windshield; the fog clears in minutes. When washing the car, remember to clean the inside of the glass—fingerprints and grease buildup can cause glare. In heavy rain, if the wipers fail, don’t force it—pull over or drive slowly to a repair shop. Regular windshield maintenance is crucial—safety first.
