What causes the squeaking noise resembling brakes after the car starts moving?

At What Level of Darkness Should Engine Oil Be Replaced?

The replacement interval for engine oil depends on the type of oil used in the vehicle. Generally, full synthetic oil should be replaced every 10,000 kilometers or once a year. Semi-synthetic oil should be replaced every 7,500 kilometers or every 7-8 months. Mineral oil should be replaced every 5,000 kilometers or every 6 months. If the oil turns black, feels gritty when rubbed between fingers, has poor viscosity, or even feels rough, it should be replaced. Below are the functions of engine oil: 1. Friction reduction: A sufficiently thick oil film separates the surfaces of relatively sliding parts, thereby reducing wear. 2. Sealing: Engine oil can form a seal between the piston rings and the piston, reducing gas leakage and preventing contaminants from entering. 3. Rust prevention: Lubricating oil adheres to the surface of parts, preventing contact with water, air, acidic substances, and harmful gases. 4. Cushioning: When the pressure in the engine cylinder rises sharply, suddenly increasing the load on the piston, piston skirt, connecting rod, and crankshaft bearings, this load is transmitted and lubricated through the bearings, cushioning the impact load. 5. Cleaning: High-quality engine oil can carry carbon deposits, sludge, and worn metal particles from engine parts back to the oil pan through circulation, flushing away dirt generated on the working surfaces of the parts via the flow of the lubricating oil.

3

0

Share

How Long Does It Usually Take to Get a Driver's License in Guangzhou?

In Guangzhou, it generally takes 6 months to a year to obtain a driver's license. The specific details are as follows: In Guangzhou, even if you pass all the driving test subjects at once, it usually takes at least over a year to get the license, though some driving schools may be faster. Learning to drive in Guangzhou is different from other places. Here, you must take each subject one by one, and you can only register for the next subject after passing the previous one. The key factor is the number of students enrolled in your driving school—if there are many, the waiting time can be quite long. If you fail any subject, you'll have to wait another month. The process of learning to drive in Guangzhou: 1. Subject 1 Test: From registration to taking Subject 1, the waiting time alone can be lengthy, usually 2 to 3 months. However, the pass rate is high, and the difficulty is low, as it mainly involves theoretical knowledge. 2. From Subject 1 to Subject 2: Typically, you'll have to wait in line for 4 to 5 months, and sometimes even half a year. During this period, you must practice your driving skills diligently; otherwise, if you fail the test, you'll have to wait another month or so. 3. Subject 3: After passing Subject 2, you'll usually wait another 3 to 4 months. During this time, the driving school will arrange a long-distance driving session and charge an additional fee for it. 4. The final subject, the Civilized Driving Test: You'll need to wait at least another month. After registration, if you don't have time to practice all at once, your enrollment remains valid for two years.

2

5

Share

Which Cars Have a Particulate Filter?

Most vehicle models equipped with engines that meet emission standards come with particulate filters. For example, the Magotan 330 and 380 models do not have particulate filters, while the 280 model does. Most Japanese car models do not have particulate filters, as the majority of small-displacement naturally aspirated engines can easily meet the China VI emission standards without them. A particulate filter is a ceramic filter installed in the diesel engine exhaust system that captures particulate emissions before they enter the atmosphere. It can reduce soot produced by diesel engines by more than 90%, and the captured particulate matter is subsequently burned off during vehicle operation. Working principle of the particulate filter: The diesel particulate filter is coated with metals such as platinum, rhodium, and palladium. The black smoke containing carbon particles emitted by the diesel engine enters the exhaust particulate trap through a dedicated pipeline. The densely arranged bag-type filters inside capture the carbon particles on a filter made of metal fiber felt. When the accumulated particles reach a certain level, the burner at the end automatically ignites, burning off the captured carbon particles and converting them into harmless carbon dioxide. To check if a car has a particulate filter, you can use the following three methods: Check the and to see if there is a particulate filter function. Additionally, carefully review the fault codes in the manual to see if there is a "particulate filter" warning light indicator. Check the label on the oil filler cap. If it clearly states 0W-20 grade oil, it indicates the presence of a particulate filter. Look behind the three-way catalytic converter on the exhaust pipe for a cylindrical section. If present, that is the particulate filter.

11

4

Share

Can Subject 2 and Subject 3 be Taken on the Same Day?

Subject 2 and Subject 3 can be taken together. For a C1 driver's license, Subject 2 and Subject 3 can be scheduled consecutively for examination. According to Article 36 of the "Regulations on the Application and Use of Motor Vehicle Driver's Licenses": The vehicle management office shall arrange the examination according to the scheduled test site and time. After passing Subject 1, the applicant can schedule Subject 2 or Subject 3 road driving skill test. In some areas, applicants can simultaneously schedule Subject 2 and Subject 3 road driving skill tests. Once successfully scheduled, the two subjects can be taken consecutively. However, in most regions, applicants must pass one subject before scheduling the next. Subject 2: Subject 2, also known as the small road test, is part of the motor vehicle driver's license assessment. It refers to the field driving skill test. For C1 and C2 vehicles, the test items include five mandatory components: reverse parking, parallel parking, hill start, right-angle turn, and curve driving. Subject 3: Subject 3 is part of the motor vehicle driver's license assessment. It refers to the road driving skill and safe driving knowledge test. Subject 2 Exam Notes: Master the steering wheel technique; Fix your seat and rearview mirror, as adjustments may change reference points; Identify reference points and find those suitable for you; Adjust direction. Subject 3 Exam Notes: Master gear shifting (upshift by sound, downshift by speed); Drive straight without deviation; Always observe and control speed at intersections, crosswalks, bus stops, and school zones; Use turn signals and check mirrors when turning (reduce speed to a controllable level, preferably to 2nd gear, before turning); Park within 30cm during parallel parking. Subject 2 Scoring Criteria: Reverse Parking: Vehicle body crosses the line: fail; Incomplete parking: fail; Stopping midway: 5 points deducted each time; Failure to complete the test within the allotted time: fail. Parallel Parking: Vehicle body crosses the line after stopping: fail; Stopping midway: 5 points deducted each time; Tires or body touch the curb: 10 points deducted; Failure to complete the test within the allotted time: fail. Curve Driving: Wheels touch the road edge line: fail; Stopping midway: fail; Not driving in 2nd gear or above: 5 points deducted. Right-Angle Turn:

9

3

Share

What Causes Rough Shifting in Automatic Transmissions?

Rough shifting in automatic transmissions is typically caused by insufficient transmission fluid or when the fluid has reached its replacement interval, necessitating an inspection of the transmission fluid. Additional relevant information is as follows: 1. Transmission Fluid: Transmission fluid is a lubricant that maintains the cleanliness of the gear system, ensuring the proper operation of the vehicle's transmission and appropriately extending the service life of the transmission components. 2. Types: Transmission fluid is divided into two types: automatic transmission fluid and manual transmission fluid. Different transmission brands require specific types of fluid, and transmission fluids should not be mixed.

3

0

Share

What engine is equipped in the Changan Eado DT?

Changan Eado DT offers models with either a 1.0T turbocharged engine or a 1.6L naturally aspirated engine. Introduction to the Changan Eado DT: 1. Body dimensions: The length, width, and height are 4575/1750/1500mm respectively, with a wheelbase of 2610mm. 2. Exterior design: It features the currently popular X-shaped front grille, paired with exquisite horizontal chrome strips, sharp headlight clusters, and LED daytime running light strips, giving the vehicle a particularly noticeable stylish appeal. 3. Configuration: It comes equipped with features such as a sunroof and shark fin antenna.

20

0

Share

What causes the squeaking noise resembling brakes after the car starts moving?

At What Level of Darkness Should Engine Oil Be Replaced?

How Long Does It Usually Take to Get a Driver's License in Guangzhou?

Which Cars Have a Particulate Filter?

Can Subject 2 and Subject 3 be Taken on the Same Day?

What Causes Rough Shifting in Automatic Transmissions?

What engine is equipped in the Changan Eado DT?

Is it necessary to replace a tubeless tire when it gets punctured by a nail?

Can You Get a Driver's License Before Turning 18?

Is it dangerous to twist the oil dipstick?

What is the maximum speed of the Geely Vision on the highway?