
Removing oil film from a car windshield can be done through the following methods: 1. Use a dedicated oil film cleaner, spray it evenly on the glass, and clean it with a car wash towel or sponge; 2. Use toothpaste for cleaning. Toothpaste contains abrasive particles that can polish the surface. Applying it evenly on the glass can clean the pores on the glass surface and remove the oil film; 3. Use an eraser, car wash clay, or newspaper to wipe and clean. An eraser and car wash clay can remove the oil film, while newspaper has some oil-absorbing effect. Dampening it with water and wiping repeatedly several times can also eliminate the oil film. If the oil film reappears shortly after removal, it might be an issue with the wiper rubber. It is recommended that the owner clean or replace it promptly.

Having driven for over a decade, what annoys me most is the oily film on the windshield, which gets blurry on rainy days. The simplest and most practical method is using toothpaste with a sponge—squeeze two centimeters of toothpaste onto a wet sponge, scrub the glass in circular motions for five minutes, then rinse off with clean water. Just do it occasionally when washing your car regularly. Park away from restaurant exhaust vents and under trees to avoid resin, and you'll have much less oily film. Never use laundry detergent or dish soap, as their high alkalinity can damage the glass coating. For stubborn oily film, use a professional degreaser with a polishing cloth—after scrubbing, the glass will regain clarity, making driving safer.

To remove car oil film, follow three steps: first, use a neutral glass cleaner to soften the grease; then, apply an oil film remover with a microfiber cloth and scrub horizontally; finally, apply a glass coating for enhanced protection. The most cost-effective option is a three-in-one oil film cleaning paste available at supermarkets—just three minutes during your weekly car wash is sufficient. Pay special attention to cleaning the rubber blades of the wipers to avoid secondary contamination. After completion, visibility improves significantly during heavy rain, headlights no longer scatter at night, and overall safety is greatly enhanced.

Don't underestimate oil film issues. I've tried kitchen detergent but it made things blurrier. Professional oil film cleaners work best—a small bottle lasts half a year. Application is super simple: after cooling the glass, spray the cleaner evenly, scrub twice in circular motions with a damp cloth, then rinse thoroughly and dry. Finally, apply a rain-repellent film to prevent new oil buildup. This method is low-cost, fast-acting, and effortless—done in just 15 minutes.

Windshield oil film is categorized into mild and severe. Mild cases can be wiped off with white vinegar or alcohol wipes, while severe cases require oil film cleaner plus a nano sponge. The key is maintaining a monthly cleaning routine, focusing on the inner side of the glass during car washes. I recommend oil film removal wipes for convenient on-the-go cleaning. Avoid cleaners with abrasive particles as they can scratch the glass. After cleaning, wiper blades last longer, and visibility improves significantly in rainy conditions, reducing driving stress.

There are two types of methods for removing oil film: physical and chemical. The physical method involves repeatedly wiping and absorbing oil stains with a clay cloth, while the chemical method relies on cleaning agents to dissolve the oil layer. I prefer to first spray a dedicated oil film remover and let it sit for three minutes, then use a microfiber towel to wipe in one direction to avoid residue. The oil film on the inner side of the glass is often overlooked, so it's recommended to perform a deep cleaning every quarter. After treatment, remember to apply a water repellent to form a protective layer, so that rainwater will slide off directly next time without leaving oil stains, ensuring a clearer view.


