What is Gasoline Additive?

Why does the window automatically roll down when being raised?

Window automatically rolling down when being raised is caused by the activation of the car's anti-pinch function. Here are the specific explanations for why the window automatically rolls down: 1. Tight sealing strip: If the window sealing rubber strip is too tight, when the window reaches the highest position, it will trigger the window anti-pinch function, causing the window to automatically roll down. 2. Foreign objects on the glass guide rail: If there are foreign objects or dust on the glass guide rail, it can also trigger the window anti-pinch function, leading to the window automatically rolling down. 3. Faulty window controller: If the window controller malfunctions and causes the window to automatically roll down, this situation requires repair at a professional auto repair shop.

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How Many Kilometers for the First Maintenance of a Sedan?

New cars require their first maintenance at 5,000 kilometers. Regular preventive maintenance on certain parts of the vehicle aims to keep the car clean, ensure normal technical conditions, eliminate hidden dangers, prevent faults, slow down the deterioration process, and extend the service life. Maintenance items include the following two aspects: 1. Minor Maintenance; (1) Engine Oil Change: Lubricates, cleans, cools, seals, and reduces friction in the engine, thereby decreasing wear on engine components; (2) Oil Filter Replacement: Engine oil contains a certain amount of gum, impurities, moisture, and additives. During engine operation, metal shavings from friction, airborne impurities, and oil oxidation products are all filtered by the oil filter. If the oil is not filtered and directly enters the oil circulation, it will adversely affect the engine's performance and lifespan; 2. Major Maintenance; (1) Air Filter: The engine inhales a large amount of air during operation. If the air is not filtered, the dust in it can accelerate wear on the piston group and cylinder. Larger particles entering between the piston and cylinder can also cause severe "cylinder scoring." The air filter's role is to remove dust and particles from the air, ensuring sufficient and clean air enters the cylinder; (2) Fuel Filter: The fuel filter's function is to provide clean fuel to the engine, filtering out moisture and impurities in the gasoline, thereby optimizing engine performance and providing the best protection for the engine.

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What are the penalty rules for the fixed-point hill climb in Subject 2?

Penalty rules for the fixed-point hill climb in Subject 2: Misalignment with the target point deducts 10 points, crossing the white line deducts 10 points, crossing the yellow line deducts 100 points, stalling or rolling backward deducts 100 points, with a passing score of 80. During the test, base your approach on the "1" point, adjust your alignment accordingly, and maintain a safe distance from the yellow line while staying close to the white line. Below are the detailed penalty rules: 1. Failure to stop at the designated point: Deduct 100 points. 2. Front bumper not reaching the control line after stopping: Deduct 100 points. 3. Rolling backward more than 30 cm after stopping: Deduct 100 points. 4. Rolling backward less than 30 cm after stopping: Deduct 10 points (previously 20 points). 5. Failing to turn on the left turn signal when starting: Deduct 10 points. 6. Driving over the solid edge line of the road: Deduct 100 points. 7. Front bumper not reaching the stopping line after stopping: Deduct 10 points (previously 20 points). 8. Right front wheel more than 30 cm from the edge line when stopping: Deduct 10 points (previously 20 points). 9. Exceeding 30 seconds to start: Deduct 100 points.

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How to Add Oil to an Oil-Water Separator?

An oil-water separator does not require oil to be added; it is the oil mist separator that needs oil. The primary function of an oil-water separator is to remove water and impurities from diesel fuel, thereby reducing injector failures and ensuring the normal operation of the engine. Some models also include additional features, such as automatic drainage and heating functions. Below is a classification of oil-water separators: 1. By mechanism: Mainly divided into water-removing oil separators and oil-removing water separators. 2. By application: Primarily categorized into industrial-grade oil-water separators, commercial oil-water separators, and household oil-water separators. 3. By separation principle: Mainly includes membrane filtration oil-water separators, oil-water separators using oleophilic materials, passive oil-water separators that rely on gravity for separation, and demulsifying oil-water separators based on pharmacological effects.

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Is it still necessary to affix the compulsory insurance label on a car?

It is necessary to affix the compulsory insurance label on a car. Below are the requirements for affixing the vehicle inspection label: 1. Placement position: If the annual inspection pass label, compulsory insurance label, and green environmental protection label are not affixed to the designated position, according to Article 13 of the "Regulations for the Implementation of the Road Traffic Safety Law": The motor vehicle inspection pass label and insurance label shall be affixed to the upper right corner of the front window of the motor vehicle. 2. Punching the inspection label: Punching the inspection label was an early method to identify the vehicle inspection date. Along the edge of the upper part of the inspection label, there are 1 to 12 positions for punching, representing the 12 months. If the inspection date is in June, a hole will be punched at the number 6.

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Can Modified Coilover Suspension Pass Annual Inspection?

Whether modified coilover suspension can pass annual inspection depends on whether the owner has filed a record with the vehicle management office or traffic authorities. Here are the specific details: 1. If not filed with the traffic authorities, it cannot pass the annual inspection. Any modification to a vehicle requires filing a record with the vehicle management office; otherwise, it is considered an unauthorized modification and is illegal, making it impossible to pass the annual inspection. 2. If already filed with the traffic authorities, it can pass the annual inspection. Before modifying a vehicle, the detailed modification plan must be submitted to the traffic authorities for review, and only after approval can the modification be legally carried out. Below are the relevant laws and regulations in China regarding vehicle modifications: Article 16 of the "Regulations on the Registration of Motor Vehicles": Under the following circumstances, the owner of the motor vehicle does not need to apply for a change of registration, provided that it does not affect safety and the identification of the license plate: 1. Installation of front and rear anti-collision devices on small and mini passenger vehicles. 2. Installation of windshields, water tanks, toolboxes, spare tire racks, etc. on cargo vehicles. 3. Addition of interior decorations to motor vehicles.

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What is Gasoline Additive?

Why does the window automatically roll down when being raised?

How Many Kilometers for the First Maintenance of a Sedan?

What are the penalty rules for the fixed-point hill climb in Subject 2?

How to Add Oil to an Oil-Water Separator?

Is it still necessary to affix the compulsory insurance label on a car?

Can Modified Coilover Suspension Pass Annual Inspection?

How far can you drive when the fuel warning light comes on?

Is 95 Octane Gasoline More Fuel-Efficient Than 92 Octane?

Is There a Purchase Tax for New Energy Vehicles?

How to Check Tire Size?