Which letter represents the speed rating on tires?

Are All Cars Over 10 Years Old Fuel Inefficient?

Whether cars over 10 years old are fuel inefficient depends on specific circumstances. There are many factors affecting a car's fuel consumption, including external and internal factors. External factors: Driving habits, road conditions, vehicle load, tire pressure, and other factors can all influence a car's fuel consumption. Internal factors: What truly affects a vehicle's fuel consumption is how many strokes the engine makes within a specified time and distance. Strokes refer to the engine's RPM. Therefore, only when both displacement and RPM are low will the car's fuel consumption be lower. These factors are interrelated. Solutions for high fuel consumption: First, check the tires. If the tire pressure is insufficient, fuel consumption will increase. If the tire pressure is normal, inspect the tire wear. Severe tire wear can cause slipping, which also increases fuel consumption. Next, examine the engine. If there is excessive carbon buildup in the engine in a short period, it may be due to using substandard fuel. Add a certain amount of cleaner when refueling. If the effect is not noticeable, it indicates significant carbon buildup in the engine, which requires cleaning by a 4S shop or repair shop. Finally, if the oxygen sensor is damaged, it will disrupt the air-fuel ratio in the engine, leading to abnormally high fuel consumption. Replace the oxygen sensor as soon as possible.

10

5

Share

Do I Need to Drive the Car to Get a Replacement Key?

You definitely need to bring the car when getting a replacement car key. The new key must be reprogrammed with the vehicle, as the anti-theft chip inside the car requires computer synchronization with the vehicle. Additionally, you should bring both keys with you. Types of Car Keys: Currently, car keys are divided into two types: mechanical keys and remote keys. Different car models have different keys and chips, and the prices vary accordingly. If you seek help from a 4S service station, you'll need to have the car towed there first, as only the dealership has the equipment to open the car door or program a new key. If you need to open the car door to make a new key, be sure to bring relevant documents to prove you are the owner—this helps avoid unnecessary trouble. The cost of getting a key from a dealership is relatively higher than at an outside repair shop, but the security is highly reliable. Spare Key: Generally, cars now come with two keys: one for regular use and the other as a spare. If the primary key is lost, the spare key can come in handy. Therefore, it's crucial to remember that the spare key should never be left inside the car—always keep it in a safe place at home. Otherwise, if the primary key is lost and the spare is still inside the car, you'll have to call a locksmith. Professional Locksmith Services: If the vehicle is far from the spare key or the spare key is also missing, you’ll need to hire a professional locksmith to unlock the car. Typically, you'll need to provide relevant documents, such as your ID card or vehicle registration certificate.

10

3

Share

How long does a driver's license application remain valid without taking the test?

If the driver's license application process is not completed within 3 years, the learning driving permit will become invalid. Explanation of driver's license invalidation: According to Article 38 of the 'Regulations on the Application and Use of Motor Vehicle Driver's Licenses,' applicants learning to drive on training grounds and roads must obtain a learning driving permit as required. The learning driving permit is valid for three years, and applicants must complete the subject two and subject three tests within the validity period. If the tests are not completed within the validity period, the passed subject results will be invalidated. Driver's license usage regulations: If a driver's license expires, it cannot be directly renewed in a different location. However, the license can first be transferred to the place of residence before proceeding with the renewal. For renewing a driver's license in a different location, the process must be completed before the license expires. After expiration, the renewal can only be applied for at the vehicle management office in the original issuing location of the driver's license. Purpose of a driver's license: Driving a motor vehicle requires certain driving skills. Without these skills, driving a motor vehicle recklessly could lead to traffic accidents. Generally, individuals without a license are not allowed to drive on the road. For those who have mastered safe driving techniques, the document that permits them to drive vehicles on the road is called a 'driver's license,' which signifies that it is a 'certificate of permission.'

5

1

Share

Can I Keep One Point After Deducting Eleven Points from My Driver's License?

It is acceptable to keep one point after deducting eleven points from your driver's license. Driver's License Usage Regulations: When your driver's license expires, you cannot directly apply for a renewal in a different location. However, you can first transfer it to your place of residence and then proceed with the renewal process. For out-of-town renewals, you must complete the process before the license expires. Once expired, you can only apply for renewal at the vehicle management office in the issuing location of the driver's license. Driver's License Annual Review Introduction: Since 2013, holders of A and B class driver's licenses must undergo an annual review instead of every two years. If there are no point deductions on the license, it may be exempt from inspection. According to current regulations, A and B class license holders must submit a physical condition certificate every two years and participate in an annual review. Conditions for Exemption from Annual Review: According to the Ministry of Public Security's Order No. 123, 'Regulations on the Application and Use of Motor Vehicle Driver's Licenses,' effective from January 1, 2013, only A and B class drivers with point deductions are required to participate in the annual review, during which they must declare their physical condition. Drivers without any point deductions in a scoring cycle are exempt from the annual review and physical condition declaration. Purpose of a Driver's License: Driving a motor vehicle requires certain skills. Without these skills, driving a vehicle recklessly can lead to traffic accidents. Generally, individuals without a license are not allowed to drive on the road. For those who have mastered safe driving techniques, the document that permits them to drive vehicles on the road is called a 'driver's license,' which signifies that it is a 'certificate of permission.'

7

5

Share

Is 4H High-Speed Four-Wheel Drive or Low-Speed Four-Wheel Drive?

2H is two-wheel drive, 4H is high-speed four-wheel drive, and 4L is low-speed four-wheel drive. The difference between 4L and 4H lies in the change in the vehicle's gear ratio. Compared to the low rotation speed of the wheels, the engine requires a higher rotation speed, which means the small gear drives the large gear, resulting in increased torque applied to the wheels. Part-time four-wheel drive distributes power to all four wheels through a transfer case, allowing switching between 2H, 4H, and 4L via a four-wheel drive lever or electronic button. Dry paved roads do not require four-wheel drive, so selecting two-wheel drive (2H) is sufficient. Part-time four-wheel drive should not use 4H or 4L on dry paved roads, whether driving straight or turning. Most off-road vehicles can handle general rough roads with their high ground clearance, but encountering off-road conditions or severe weather changes the situation. When driving on snow, 4H is suitable. Using 4L may result in excessive torque, causing the wheels to slip and the vehicle to get stuck. Even on snowy paved roads, 4H provides better traction for the wheels. 4H has broader applications and is typically used on surfaces where 2H two-wheel drive might cause slipping. Additionally, engaging 4H makes it easier for the vehicle to climb hills. The same applies to driving on muddy terrain—most situations do not require the high torque output of 4L, as it can cause the wheels to spin in place and get stuck. Of course, off-road vehicles in 2H mode can handle many loose or slippery gravel and dirt roads, but activating 4H ensures more stable and smoother driving.

10

1

Share

How Many Times Can You Take the Subject 1 Exam?

There is no limit to the number of times you can take the Subject 1 exam. As long as you fail, you can retake it until you pass. According to the "Regulations on the Application and Use of Motor Vehicle Driver's Licenses," you can take the Subject 1 exam twice on the same day. If you fail the first attempt, you can retake it for free the second time. If you fail the second attempt, the Subject 1 exam for that day is terminated, and you can only schedule another exam after ten days. Subject 1, also known as the Subject 1 theory exam or driver's theory exam, is part of the motor vehicle driver's license assessment. The exam content includes driving theory basics, road safety laws and regulations, local regulations, and related knowledge. The exam is conducted on a computer, with a time limit of 45 minutes. A passing score for the Subject 1 exam is 90 out of 100. The exam consists of 100 questions, including single-choice and true/false questions, with each question worth 1 point. If you answer 11 questions incorrectly during the exam, the system will automatically submit the exam and end the test. Subject 1 exam content: Driver's license and motor vehicle management regulations; road traffic conditions and regulations; road traffic safety violations and penalties; road traffic accident handling regulations; basic knowledge of motor vehicles; local regulations; knowledge of braking systems and safety devices for large and medium-sized passenger and freight vehicles; specialized knowledge for wheeled self-propelled machinery, trams, and trolleybuses. Subject 1 exam precautions: During the exam, students should pay attention to their attire—no slippers are allowed. Electronic devices and bags are not permitted in the exam room. Bring your ID card and queue to enter the waiting hall. Observe the precautions and procedures on the large screen, and store personal belongings in lockers before entering the exam room. Upon entering the exam room, the identity verification station will assign a seat. After finding your seat, begin the exam. Ensure the camera is aimed at you and follow exam discipline. If you fail the first attempt, you can retake it the same day. If you fail again, you must pay to reschedule. After the exam, queue to collect your score report and sign it. Failure to sign will render the exam invalid. There is no limit to the number of times you can schedule the Subject 1 exam. Each subject can be taken once, with one retake allowed if you fail. If you do not take the retake or fail the retake, the exam for that subject is terminated, and you must reschedule. In contrast, Subjects 2 and 3 allow only five exam attempts. Subjects 2 and 3 can be rescheduled after ten days. If you fail the Subject 3 safe and civilized driving knowledge exam, your previously passed road driving skills exam results remain valid. The driver's license exam consists of three subjects: Subject 1, Subject 2, and Subject 3. Subject 1 refers to the road traffic safety laws, regulations, and related knowledge exam. Subject 2 refers to the field driving skills exam. Subject 3 is divided into two parts: road driving skills and safe and civilized driving knowledge. The safe and civilized driving knowledge exam is conducted after Subject 3, so it is commonly referred to as Subject 4. However, the official term (as per the Ministry of Public Security Order No. 123) does not include a Subject 4.

1

5

Share

Which letter represents the speed rating on tires?

Are All Cars Over 10 Years Old Fuel Inefficient?

Do I Need to Drive the Car to Get a Replacement Key?

How long does a driver's license application remain valid without taking the test?

Can I Keep One Point After Deducting Eleven Points from My Driver's License?

Is 4H High-Speed Four-Wheel Drive or Low-Speed Four-Wheel Drive?

How Many Times Can You Take the Subject 1 Exam?

What is the size of a 195 tire in inches?

Why is there no sound when playing music via connected car Bluetooth?

How Many Amps is 12V?

Can you cross a yellow dashed line for overtaking or turning?