What are the maintenance items needed for a car at 30,000 kilometers?

Is it okay to mix a little bit of coolant?

It is not recommended to mix coolants. However, if only a small amount is mixed, it will not affect the vehicle. If you must mix coolants, they must be from the same brand. Different brands of coolant have varying production formulas, and mixing them may cause chemical reactions between additives, rendering them ineffective. Method for replacing coolant: Before completely replacing the coolant, conduct a thorough inspection to check for any signs of leaks or cracks in the pipes, with a focus on the five-way hose. The five-way hose gets its name from having five connection points to various parts of the vehicle. Coolant flows through the five-way hose and is distributed to different parts of the car to function. If there is any leakage of coolant in this section, replace the hose or resecure the connections as needed. Drain the old coolant, then flush the fluid channels with clean water. Add clean water to the coolant reservoir, then continue filling the reservoir with water to allow it to flow continuously through the engine cooling system. Start the engine and let it idle for 3 to 5 minutes to circulate the water. Initially, the water draining from the reservoir may appear slightly pinkish. Continue adding clean water until the water runs clear. Note: Don’t forget to remove the heater hose and drain the water from the heater core. After draining for about an hour, add the new coolant through the radiator hose—this allows the coolant to flow quickly into the radiator. Then, add another container of coolant to the coolant reservoir until it is nearly full. Start the engine and let it run for about 10 minutes. During this time, the coolant level will drop slightly as air is purged from the cooling system. Top up the coolant to the "MAXT" mark on the reservoir.

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Can other vehicles enter and drive in dedicated lanes?

During specified hours, when a road is designated as a dedicated lane, only permitted vehicles are allowed to pass, and other vehicles must not enter or drive in the dedicated lane. Outside of the specified hours, other vehicles may then use the lane. The introduction and classification of dedicated lanes are as follows. Introduction to dedicated lanes: A dedicated lane refers to a lane designated exclusively for certain types of vehicles or specific uses. Classification of dedicated lanes: Dedicated lanes can be categorized into pedestrian walkways, non-motorized vehicle lanes, and motor vehicle lanes. Dedicated lanes typically feature yellow and white markings. Yellow markings are further divided into solid and dashed lines, with solid yellow lines falling into three different scenarios.

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What is the speed limit for secondary roads in kilometers?

Secondary roads have a standard speed limit of 40km/h-80km/h. Secondary roads are a type of road classification, ranking below primary roads and above tertiary roads, and are widely used in actual road construction. Their main function is to connect specific administrative centers, transportation hubs, commercial areas, residential communities, industrial zones, or tourist attractions. A key characteristic is the construction of as wide and straight a road surface as possible with relatively low investment and cost, making them the most comprehensively utilized. The basic features of secondary roads are as follows: No central divider: Road design requirements allow for the absence of a central divider (which can be added based on actual conditions). When there is no central divider, double yellow lines, single yellow lines, or single yellow dashed lines should be marked; Speed limit: Balancing efficiency and safety, the speed limit is set at 40km/h-80km/h.

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Is the Subject 4 Test Available Every Day?

Subject 4 tests are usually divided into morning and afternoon sessions. Generally, the morning session starts around 9:00 AM, while the afternoon session begins at 1:00 or 1:30 PM. Of course, the specific sessions and times vary by location. The duration of the Subject 4 test is 45 minutes, the same as Subject 1, ensuring sufficient time to complete the exam at a normal pace. Below is relevant information: Introduction: Subject 4, also known as the Subject 4 theory test or driver's theory test, is part of the motor vehicle driver's license assessment. After the implementation of the "Ministry of Public Security Order No. 139 of the People's Republic of China," the Subject 3 test was divided into two parts: the road test and an additional safety and civilization knowledge test, commonly referred to as "Subject 4," which evaluates "driving ethics." Since this test is conducted after Subject 3, it is commonly called the Subject 4 test, although officially, there is no such term as Subject 4. Test Content: The test consists of 50 questions, primarily in the form of case studies, images, and animations, with a total score of 100 and a passing score of 90.

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How many points are deducted and how much is the fine for not carrying a driver's license?

For driving a vehicle without carrying a driver's license, one point will be deducted, and a warning or fine may be imposed. If the vehicle license or driver's license is not carried with the vehicle, the traffic management department of the public security organ shall detain the motor vehicle. Below are the relevant details: According to Article 95 of the Road Traffic Safety Law of the People's Republic of China: If a motor vehicle driven on the road does not display a motor vehicle license plate, does not have an inspection compliance mark or insurance mark, or does not carry the vehicle license or driver's license, the traffic management department of the public security organ shall detain the motor vehicle, notify the party to provide the corresponding license, mark, or complete the relevant procedures, and may impose penalties in accordance with Article 90 of this Law. The motor vehicle shall be promptly returned to the party after they provide the corresponding license, mark, or complete the relevant procedures. Intentionally covering, damaging, or improperly installing a motor vehicle license plate will be penalized according to Article 90 of this Law. Additional information: Article 19 of the Road Traffic Safety Law of the People's Republic of China states that driving a motor vehicle requires obtaining a driver's license in accordance with the law. Applicants for a driver's license must meet the driving permit conditions stipulated by the public security department under the State Council; upon passing the examination, the traffic management department of the public security organ shall issue a driver's license of the corresponding category.

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What are the effects of a faulty brake sensor on a car?

It can cause poor acceleration, unstable idling, and poor engine performance. It is recommended to repair the issue promptly. Below is information about other sensors: Intake pressure sensor: When faulty, the engine's intake pressure becomes abnormal, and the car's computer cannot receive the correct signal, leading to abnormal fuel injection. This results in incomplete combustion of gasoline in the cylinder, causing black smoke during acceleration and a lack of engine power. Coolant temperature sensor: If there is a problem, the car detects abnormal coolant temperature signals during operation. The car's computer will then control the engine's power output to protect the engine. The engine fault indicator on the dashboard will light up, and the engine computer will limit the engine's output, resulting in a lack of power.

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What are the maintenance items needed for a car at 30,000 kilometers?

Is it okay to mix a little bit of coolant?

Can other vehicles enter and drive in dedicated lanes?

What is the speed limit for secondary roads in kilometers?

Is the Subject 4 Test Available Every Day?

How many points are deducted and how much is the fine for not carrying a driver's license?

What are the effects of a faulty brake sensor on a car?

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