Can You Continue Driving with Overheated Tires on the Highway?

What Are the Components of Gear Oil?

Gear oil is primarily composed of petroleum base oil or synthetic lubricating oil, blended with extreme pressure anti-wear agents and oiliness agents to form an essential lubricant. It is used in various gear transmission devices to prevent tooth surface wear, scuffing, sintering, etc., thereby extending their service life and improving efficiency. Below is more information about gear oil: 1. Gear oil mainly refers to the lubricating oil for transmissions and rear axles. It differs from engine oil in terms of usage conditions, composition, and performance characteristics. Gear oil primarily functions to lubricate gears and bearings, prevent wear and corrosion, and assist in heat dissipation. 2. Automotive gear oil is used in gear transmission mechanisms such as steering gears, transmissions, and drive axles. Due to the high surface pressure during gear transmission, gear oil plays a crucial role in lubrication, anti-wear, cooling, heat dissipation, anti-corrosion and rust prevention, cleaning, and reducing tooth surface impact and noise.

16

1

Share

Can I take the Subject 3 driving test with an expired ID card?

You cannot take the Subject 3 driving test with an expired ID card. You need to go to the local police station in your permanent residence area to renew your ID card. At the same time, you should apply for a temporary ID card, which has the same legal effect as a formal ID card within its validity period. The temporary ID card is valid for three months, and it usually takes three days to obtain, but you can often get it on the same day. You can use the temporary ID card to take the Subject 3 test. The driving test is a qualification examination organized by the Vehicle Management Office of the Public Security Bureau. Only by passing the driving test can you obtain a driver's license and legally drive a motor vehicle. The test content and passing standards are unified nationwide, with corresponding test items specified for different types of vehicles. The "Temporary ID Card Management Regulations" stipulate in Article 14: Citizens engaged in relevant activities that require identity verification have the right to use a temporary ID card to prove their identity. Relevant units and their staff are not allowed to refuse. However, the temporary ID card is valid for only three months, so it is recommended to apply for a new ID card as soon as possible. If you know your ID card has expired before the test, you can first inquire with the driving test center or the Vehicle Management Office to see if other valid documents (such as a residence permit) can be used. If not, go to the local police station to apply for a temporary ID card as soon as possible. If you really cannot apply for a temporary ID card in time, cancel the test at least one day in advance at the Vehicle Management Office. This way, it will not be counted as a failure or absence, and you will not waste your test attempts. There are a total of 5 attempts for the Subject 3 test. If you fail the first attempt, you get one free retake on the spot. If you still fail the retake, the test session is terminated. Subject 3 includes the road driving skills test and the safe and civilized driving knowledge test. It is part of the motor vehicle driver's license test and is also the abbreviation for the road driving skills and safe and civilized driving knowledge test in the motor vehicle driver's test. The road driving skills test content varies depending on the type of vehicle you are licensed to drive. Test content: Getting into the car, light simulation test, starting, driving straight, shifting gears, changing lanes, pulling over, going straight through an intersection, turning left at an intersection, turning right at an intersection, crossing a pedestrian crossing, passing a school zone, passing a bus stop, meeting another vehicle, overtaking, making a U-turn, and driving at night. The safe driving knowledge test generally includes: safe and civilized driving operation requirements, safe driving knowledge in bad weather and complex road conditions, emergency handling methods such as tire blowouts, and post-accident handling knowledge.

20

0

Share

What are the mirrors on both sides of the car called?

The mirrors on both sides of the car, that is, on the left and right sides of the driver and co-driver seats, are called rearview mirrors. They are used to observe the road conditions behind the car during reversing and to monitor the surroundings of the vehicle while driving. Below is some relevant information about rearview mirrors: 1. Rearview mirrors are one of the important safety components of a motor vehicle's body, used to observe the road conditions behind the car during reversing and to monitor the surroundings of the vehicle while driving. Currently, the reflective films of rearview mirrors in domestic vehicles are generally made of silver and aluminum, with some using chromium as the material. 2. Currently, in foreign countries, chromium mirrors have replaced silver and aluminum mirrors for vehicle rearview mirrors. Rearview mirrors are tools that allow the driver to directly obtain external information about the rear, sides, and lower parts of the car while seated in the driver's seat. For the convenience of the driver's operation, to prevent traffic safety accidents, and to ensure personal safety, all countries require that vehicles must be equipped with rearview mirrors, and all rearview mirrors must be adjustable in direction.

14

2

Share

What is the optimal position for adjusting car rearview mirrors?

The correct positions for adjusting car rearview mirrors are as follows: 1. Center rearview mirror: The center rearview mirror helps drivers quickly assess road conditions behind them and maintain a safe distance from vehicles at the rear. Adjust the center mirror to be parallel with the horizon line, positioning the horizon at the center 1/2 point of the mirror surface. The mirror should slightly face the driver to ensure clear visibility of vehicles directly behind. 2. Left side mirror: Since the left mirror is closer to the driver's side, the blind spot is smaller and the field of view wider, requiring less adjustment than the right mirror. Similarly, adjust the horizon to the center 1/2 position of the left mirror while keeping 1/4 of the car body visible in the mirror. Showing too little of the car body makes it hard to see vehicles close to the rear; showing too much makes it difficult to clearly see vehicles that are partially parallel. 3. Right side mirror: Being on the right side, the driver's blind spot is larger, requiring different adjustment angles than the left mirror. Here, adjust the horizon to the 2/3 position of the right mirror while maintaining 1/4 of the car body visible.

11

5

Share

How Long Can Opened Motor Oil Be Stored?

Opened motor oil can be stored for six months to one year. Below are precautions for using motor oil: 1. Gasoline engine oil cannot be used in diesel engines: Special gasoline engine oil should not replace diesel engine oil to avoid accelerating wear in diesel engines. Gasoline engine oil and diesel engine oil should, in principle, be used separately. Only when the automobile manufacturer provides substitution instructions or the oil is labeled as suitable for both gasoline and diesel engines can it be substituted or used within the specified grade range. 2. Motor oil viscosity should be as low as possible: Under the premise of ensuring reliable lubrication for the engine, the viscosity of the oil should be as low as possible. High-viscosity oil is only suitable for severely worn engines or for use in southern summers. Using excessively high-viscosity oil will increase the resistance during engine operation, thereby increasing fuel consumption. 3. Adhere to the principle of economy and practicality: When selecting the grade of motor oil, high-grade oil can be used in engines with lower requirements, but excessive downgrading is not economical. Never use lower-grade oil in engines that require higher-grade oil, as this may lead to premature engine wear and damage.

4

Share

How Long Does It Take to Get a Temporary License Plate?

Temporary license plates can usually be obtained on the same day of application. When using temporary plates, it is important to adhere to traffic regulations, as they hold the same legal validity as regular license plates. Additionally, be mindful of the expiration date of the temporary plates to avoid using them past their validity period. Here is some information about temporary license plates for vehicles: 1. Temporary license plates are issued by the vehicle management department of the public security authorities when a vehicle has not yet been officially registered due to pending procedures. The validity period of a temporary license plate generally does not exceed thirty days, and its use is limited by both time and region. 2. There are four types of temporary license plates: temporary plates for use within an administrative district, temporary plates for use across administrative districts, temporary plates for testing purposes, and temporary plates for special types of motor vehicles.

14

2

Share

Can You Continue Driving with Overheated Tires on the Highway?

What Are the Components of Gear Oil?

Can I take the Subject 3 driving test with an expired ID card?

What are the mirrors on both sides of the car called?

What is the optimal position for adjusting car rearview mirrors?

How Long Can Opened Motor Oil Be Stored?

How Long Does It Take to Get a Temporary License Plate?

Is an appointment required for the first maintenance?

What is the Driver's Oath?

What are the symptoms of a faulty car fuel injector?

Does the Timing Chain of a Car Need to Be Replaced?