A blurred windshield is generally caused by the accumulation of contaminants on the glass over time, leading to the formation of an oily film. This film mainly originates from pollutants in vehicle exhaust, oil and grease pollution, as well as environmental factors like tree sap and bird droppings.
Pollutants produced by the incomplete combustion of vehicle exhaust gradually deposit on the windshield. Parking in areas with heavy oil and smoke exposure can also lead to the formation of an oily film. Additionally, vehicles parked under trees are prone to being affected by tree sap and bird droppings, which reduce the transparency of the windshield and contribute to the formation of an oily film.
To prevent excessive accumulation of the oily film from impairing visibility, it is essential to clean the vehicle's surface regularly. Drivers should pay attention to any blurring of the windshield during daily driving and take cleaning measures promptly. If a large area of oily film is found, using a professional automotive oily film cleaner or seeking assistance from a car detailing shop is recommended.
For vehicles that are parked for extended periods, it is advisable to choose parking locations carefully and consider using protective covers to prevent the formation of an oily film. Keeping the windshield clean is crucial for driving safety.
