
Make sure to clean both the rearview mirror and the front triangular areas. Use a clay bar or detailing clay to remove dirt and oxidation layers from the glass. Rinse and dry the glass thoroughly; apply a dedicated windshield grease film remover to eliminate the grease film. Evenly saturate the foam side of the coating sponge with the glass grease film remover. Apply moderate pressure and spread the remover from top to bottom. After application, wipe the glass with a clean towel. Once wiped, rinse the glass with low-pressure water. Use an air blower and towel to dry the rinsed glass completely. After drying, apply a glass coating to create a barrier against grease film contamination and improve visibility during rainy driving conditions.

I've got experience with cleaning glass oil film. Last time I did it myself, and the result was even cleaner than what the car wash shop did! First, thoroughly wet the windshield to rinse off any sand, then shake the oil film cleaner well and spray it on—don't skimp, just cover the entire glass surface. After spraying, let it sit for two minutes to break down road grease, tree sap, and bug residue. Then, use the provided sponge brush or cloth to scrub in circles with some force, especially focusing on the lower part of the glass where wipers often miss. Finally, rinse it off with a high-pressure hose or regular water hose. If you run your finger over it and don't feel any slippery oil film residue, you're good. After cleaning, the wipers glide smoothly without any squeaking, and visibility is crystal clear—much safer for night driving.

It's very easy to operate, even beginners can get the hang of it after one try. Remember to lift the wiper blade and secure it in the air first, otherwise the spray flowing into the wiper shaft can damage the rubber strip. Then, spray the cleaner evenly on the glass from about 30 centimeters away, ensuring full coverage. Here's the key point: use the provided sponge pad to wipe the entire glass in circular motions, rubbing more on areas with thick oil film to allow the solution to fully dissolve the dirt. Finally, rinse with clean water, and you'll notice the glass immediately appears clear where the water flows. After washing, the wiper works very smoothly, and the squeaking noise disappears.

Having tried several oil film cleaners, I personally think the effect is pretty similar—the key lies in the procedure. Rainy days are the most suitable for this, as you can rinse it off with the rain afterward. After spraying the cleaner, don't rush to wash it off immediately; waiting five to six minutes allows it to break down the grime more effectively. For those with less strength, like women, using a microfiber cloth and applying more pressure can help, and wearing cut-resistant gloves adds safety. In summer, choose a shady spot to avoid direct sunlight, or the cleaner might evaporate, making your effort futile. Finally, after rinsing with water, make sure to dry the surrounding areas to prevent watermarks that would require redoing the job. After cleaning, driving at night makes traffic lights appear exceptionally clear.

Besides the steps mentioned in the manual, I've figured out a few tricks myself. First, thoroughly clean the accumulated dust under the wiper blades, otherwise it's a wasted effort. Second, maintain a spraying distance of 40 cm—too close is wasteful, too far reduces effectiveness. When the cleaner starts foaming and turning white, it means it's working, and you can start wiping. Remember not to let the cleaner dry on the glass, as it can leave stains once dried. When rinsing, don’t just rinse the glass surface; make sure to rinse away all the foam in the wiper grooves. The next morning before driving, wipe the windshield again with a wet wipe to maintain the cleanliness longer. Lastly, don’t skimp on the cleaner—using half a bottle at once works much better than small amounts multiple times.


