What is the white grease on the sunroof track?

[IsabelaLynn]

The white grease on the sunroof track is generally butter or special lubricating oil for the sunroof track. Special track lubricating oil usually has three characteristics: 1. It is resistant to low temperatures and can effectively avoid freezing; 2. It has good water resistance and can avoid being diluted by water when washing the car; 3. It has strong timeliness and good lubrication effect. Introduction to the advantages of car sunroof: 1. Cooling: The effect of reducing the temperature inside the car through the car sunroof is faster than that of air conditioning. The car sunroof extracts the hot air inside the car through the negative pressure formed on the roof during the driving process, thereby achieving the effect of rapid cooling. According to relevant experimental data, the cooling speed of the sunroof is 2-3 times faster than that of air conditioning. 2. Ventilation: When the vehicle is running at high speed, air will flow quickly near the sunroof. When the car sunroof is opened, a negative pressure area will be formed on the roof. When the air pressure inside and outside the car is different, the air inside the car can be discharged, thereby achieving the effect of ventilation, keeping the air inside the car fresh, and avoiding the increase in fuel consumption caused by opening the window for ventilation on the highway. 3. Auxiliary defogging: When the temperature difference between the inside and outside of the car is relatively large, fog will form on the inside and outside of the window. After fog forms on the windshield, it will seriously affect the driver's vision. When the driver opens the roof sunroof to the rear ventilation position, the fog on the windshield can be quickly eliminated.

[LeMalia]

When I saw the white grease on the sunroof tracks, I initially thought it was dirt. Upon checking, I realized it was actually lubricant specifically designed to reduce friction and prevent the sunroof from jamming. Having driven for over a decade, I always pay attention to this detail during maintenance because without proper lubrication, the tracks can rust, squeak, or even cause the sunroof to fail to open or leak. The lubricant is typically silicone-based or lithium-based, and its white color makes it easy to spot dirt buildup, reminding you to clean and reapply it in time. Never rinse it with water or use regular engine oil as a substitute, as this can damage the track structure. Checking every six months and applying a thin layer of specialized lubricant can extend the sunroof's lifespan and save you from costly repairs.

[Axel]

Speaking of the white grease on the sunroof tracks, as a car enthusiast, I have firsthand experience. It's essentially silicone-based lubricant, favored for its white color, high-temperature resistance, and strong dust-proof properties, which protect the tracks and motor. I often perform maintenance myself by first cleaning off old grease and debris with a soft cloth, then applying a thin layer of new grease. Insufficient lubrication can cause the sunroof to operate roughly and accelerate wear. There are specialized lubricants on the market for sunroofs, such as a certain brand's white lithium-based grease, known for its long-lasting effect. Remember to perform the maintenance in dry weather and don't overlook regular checks—it can save you hundreds in repair costs and keep the sunroof operating smoothly.

[StPhoebe]

There is white grease on the sunroof tracks, which is a lubricant applied by the factory to help reduce friction noise. As someone who prioritizes driving safety, I understand that if the lubrication fails, the sunroof may get stuck, and rainwater could leak into the cabin, affecting visibility. It is recommended to check the lubrication condition every quarter and replace it if there is any peeling or discoloration—don't delay.