What are the gray spots on a white car?

2 Answers
CatherineLee
07/24/25 2:21am
White cars have gray spots on the paint surface, which are dust particles attached after acid rain corrosion. These can be easily removed using a clay bar. Methods to remove spots on white car bodies: Spray automotive cleaner onto the spotted areas on the white car body; then let it sit for two minutes to allow the cleaner to fully react with the spots; carefully wipe the spots with a cloth. If the entire car is covered with large spots, wash the car thoroughly and perform a full-body polish using a polishing machine with a fine finishing compound, setting the machine speed between 1200 to 1500 RPM. Wash the car frequently and try to park it in a garage or cover it with a car cover. Cleaning wax and polishing are the most cost-effective methods to treat water spot stains on cars. If these methods fail to remove the water spot stains, the only remaining option is a full-body repaint. A full-body repaint is expensive and can significantly reduce the resale value of the car. Therefore, to avoid such situations, car owners should pay attention to regular paint maintenance.
Was this review help?
17
3
Share
Humbert
08/10/25 9:55pm
Last time I took my little white car for an outing, and when I came back, I noticed several gray spots on the car body. At first, I thought it was just ordinary dust, but it wouldn't come off with water. Upon closer inspection, it might have been mud splashed from the road, especially after rainy days, or perhaps bird droppings or tree sap if parked under a tree. These substances are highly acidic, and if not cleaned promptly, they can corrode the paint and leave permanent marks. I recommend regular waxing to protect the paint. I usually use car wash soap and a soft cloth for cleaning. For stubborn stains, a professional spot remover can be used. Remember not to scrape with hard objects, as it can easily damage the paint. Try to avoid parking in dirty areas and keep it clean. White car bodies show dirt more easily than darker colors, but with good maintenance, they can look very bright and make driving out a pleasant experience.
Was this review help?
9
0
Share
Expand All
More Forum Discussions

Where to Add Water to a Car?

Water is added to a car under the hood, on the left side of the engine. The operating steps are: 1. Open the driver's door of the car; 2. Pull the hood release lever located on the left side of the driver's leg area; 3. Lift the car's engine hood upwards; 4. Use the support rod to prop up the car's engine hood, ensuring it is securely supported; 5. Add water until it reaches the MAX level. Precautions for adding water to a car include: 1. Allow the system to cool and depressurize before adding water; 2. Be cautious when opening the radiator cap—stand on the upwind side of the radiator, wrap the cap with a damp cloth, and tilt your head and body to one side; 3. Add water using a slow stream, gradually increasing the speed only when no large amounts of steam are escaping from the radiator opening; 4. Use clean, soft water for filling, and avoid overfilling.
6
5
Share

How to adjust the car seat backrest?

Seat backrest adjustment method: Rotate the adjustment knob on the left side of the seat to adjust according to your body size, with a maximum tilt of one to two segments. When adjusting, use the strength of your back to adjust the backrest angle until your palm can comfortably press against the upper end of the steering wheel. Here are some additional tips: Precautions for seat adjustment: Adjust the angle of the seat backrest so that it supports your lower back. Avoid leaving your lower back unsupported when leaning back to reduce fatigue during driving. The car driver's seat is most protective of the lower back when the seat surface and backrest are tilted at approximately 100 degrees. This is because when the body leans back at a 100-degree angle, it slightly reclines, which naturally aligns with the slight backward curve of the waist. Additionally, at this angle, the raised design in the lumbar area of the car seat most effectively reduces pressure on the lower back.
16
1
Share

How many points will be deducted for speeding when visibility is below 200 meters?

When driving on highways under weather conditions with visibility below 200 meters, the speed of motor vehicles must not exceed 60 kilometers per hour. Failure to comply with this regulation will result in a one-time deduction of 6 points. Additional information: 1. Visibility below 200 meters: When visibility is below 200 meters, drivers should first turn on fog lights, low beams, clearance lights, and front and rear position lights. The speed must not exceed 60 kilometers per hour, and a distance of at least 100 meters should be maintained from the vehicle ahead in the same lane. 2. Visibility below 100 meters: When driving on highways with visibility below 100 meters, the speed must not exceed 40 kilometers per hour, and a distance of at least 50 meters should be maintained from the vehicle ahead.
10
5
Share

Will points be deducted for improper alignment during parallel parking?

No points will be deducted for improper vehicle alignment during parallel parking. Here are specific details about the driver's license examination: 1. Subjects: The test is conducted sequentially as Subject 1, Subject 2, Subject 3, and Subject 4. 2. Retakes: For driving test Subjects 2 and 3, candidates can only take each test five times. If they fail, they must repay the tuition and practice fees. According to the Ministry of Public Security's Orders No. 123 and 124, if a candidate fails the fifth scheduled test for either Subject 2 or Subject 3 (road driving skills test), all previously passed subjects will be invalidated. To obtain a driver's license, the candidate must re-enroll and pay the driving school tuition fees.
11
1
Share

What is the applicable range of Shell 10W40 engine oil?

10W40 engine oil meets the requirements under objective conditions at temperatures above -25°C, with a kinematic viscosity specification between 12.5mm²/s and 16.3mm²/s at 100°C. Below is the relevant introduction: 1. 10W40 specification: The 10 represents the minimum operating temperature of the oil at -25°C, W stands for Winter, and 40 indicates the high-temperature viscosity of the oil, with a kinematic viscosity of 14.5 cSt at 100°C. The W in the designation stands for Winter; 2. The preceding number represents the oil's low-temperature fluidity—the smaller the number, the better the low-temperature fluidity. The number after W represents the oil viscosity grade at 100°C—the larger this number, the better the protection the oil provides to the engine at high temperatures.
7
0
Share

Is the A3 Driver's License Test Difficult?

With some driving experience, passing the A3 driver's license test is not very difficult. Introduction to Driver's License: A driver's license (full name: motor vehicle driver's license), also known as a "driving license," is a document issued by the government transportation department to individuals who qualify to drive, usually in the form of a card. Conditions for Holding a Driver's License: To obtain a driver's license, one must meet the minimum age requirement and pass a driving test. The driver's license typically specifies the types of motor vehicles the holder is permitted to drive. Test Subjects: The test subjects include four items: traffic laws and related knowledge, field driving, road driving (including safe and civilized driving).
3
4
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.