How to Check If the Annual Inspection Has Expired?

Should You Use Internal or External Air Circulation When Running the Car AC on Hot Days?

On hot days, for regular cooling, first turn on the internal circulation before switching to external circulation. If the car has been exposed to direct sunlight, open the windows first before turning on the external circulation. Here is some relevant information about internal and external air circulation in cars: 1. The Principle of Internal and External Circulation: External circulation essentially draws air from outside the vehicle, filters it through the AC filter, and delivers it into the cabin via the blower. Internal circulation, on the other hand, simply blocks the external air intake. Whether using internal or external circulation, exhaust air inside the car is expelled through the vents, so there's no need to worry about oxygen levels even when using internal circulation. 2. When to Use External Circulation: Whether heating or cooling, windows are usually closed initially to quickly reach the desired cabin temperature. Over time, without fresh air, the cabin air becomes stale and oxygen levels drop. At this point, switching to external circulation allows fresh outside air to enter, facilitating quick air exchange. 3. When to Use Internal Circulation: Internal circulation is typically used when first turning on the heater or AC. Additionally, when outside air quality is poor, it's advisable to switch from external to internal circulation to prevent harmful gases from entering the cabin. Don’t assume that internal circulation makes the cabin airtight—even with internal circulation on, exhaust air is still expelled through the vents, though outside air is blocked.

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Does an Engine Necessarily Require Fuel?

To avoid increased fuel consumption and ensure normal engine startup and operation, it is essential to maintain the vehicle's fuel system. Reasons for Maintenance: After prolonged use, the fuel system can become obstructed or clogged due to dust in the air and impurities in the gasoline. Additionally, carbon deposits and gum produced during combustion can adhere to the intake and exhaust valves, intake and exhaust passages, throttle body, and combustion chamber, particularly on the fuel injector nozzles. This can lead to clogging or sticking of the injectors, causing fuel leakage, poor atomization, or even complete failure to inject fuel. Consequently, this results in increased fuel consumption, reduced engine power, unstable idling, poor acceleration, and difficulty starting. Maintenance Considerations: Regular fuel system maintenance is necessary—neither neglected nor overly frequent.

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Are Cracks on Tire Treads Serious?

Minor cracks on tires due to normal wear are generally not a concern as long as the sidewalls are intact without exposed steel belts, and the vehicle can continue to be driven safely. However, it is recommended to perform tire rotation, dynamic balancing, and four-wheel alignment every 30,000 to 50,000 kilometers to ensure driving safety. Daily tire maintenance tips: 1. Check the tire pressure of all tires at least once a month when they are cold; 2. Do not exceed the speed limits required by driving conditions and legal regulations, such as driving slowly or avoiding obstacles like road stones or potholes; 3. Regularly perform wheel alignment and dynamic balancing to ensure safe driving and extend tire lifespan; 4. Rotate tires periodically to achieve even wear and prolong tire service life; 5. Protect tires from exposure to sunlight, oil, acid, and hydrocarbons to prevent damage.

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How hard should the brake be pressed to trigger the sensor in Subject 3?

Press the brake and pause for 2 seconds (commonly known as dragging the brake), and you basically don't have to worry about the issue of the exam system not recognizing the deceleration brake. More details are as follows: 1. Cause analysis: When passing through an intersection, merely tapping the brake with your foot is not strong enough, and the system sensor cannot recognize that the driver has slowed down, which is why it prompts the examinee that they did not slow down before passing the intersection. 2. Suggestion: When passing through an intersection, you should noticeably slow down. As long as the engine does not stall, you can press the brake with any amount of force, and even a slight pause will not affect the exam. Therefore, examinees can consider braking to a stop in a semi-clutch state at the intersection and then continue driving.

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Can I abandon my motorcycle if it's impounded and my ID is recorded?

You cannot simply abandon your motorcycle if it's impounded and your ID is recorded. Consequences of abandonment: If you do not retrieve your impounded motorcycle, it will affect your future participation in driver's license tests and other situations, as your ID number has already been recorded with the motorcycle impoundment and related violations. Failure to address this issue may result in being barred from future exams. It is recommended to resolve this matter as soon as possible. Vehicle disposal: Within five days of the traffic management department of the public security authority determining the inspection report and appraisal opinion, they will notify the owner to claim the vehicle. If the owner does not claim the vehicle within 30 days of notification, and it remains unclaimed after a three-month public notice, the impounding traffic management department will dispose of the vehicle according to the law.

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What does it mean when the dashboard displays a small kettle?

The dashboard displaying a small kettle is the engine oil pressure warning light. Here is some information about engine oil: 1. Introduction: Engine oil, motor oil, or engine lubricant is a substance enhanced with additives in base oil. 2. Composition: It mainly contains anti-wear additives, detergents, dispersants, and multi-grade oil viscosity index improvers. Engine oil is used for lubricating internal combustion engines. 3. Function: The primary functions of engine oil are to reduce friction and wear on moving parts, and to remove sludge (one of the functions of dispersants) and varnish (detergents) from the engine. It also neutralizes acids produced from fuel and lubricant oxidation (detergents), improves the sealing of piston rings, and cools the engine by carrying away heat from moving parts.

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How to Check If the Annual Inspection Has Expired?

Should You Use Internal or External Air Circulation When Running the Car AC on Hot Days?

Does an Engine Necessarily Require Fuel?

Are Cracks on Tire Treads Serious?

How hard should the brake be pressed to trigger the sensor in Subject 3?

Can I abandon my motorcycle if it's impounded and my ID is recorded?

What does it mean when the dashboard displays a small kettle?

Can dishwashing detergent remove car oil film?

How Many Kilometers Can a Subaru Run on a Full Tank of Gas?

What is Reverse Parking Maneuver?

How Often Should Small Cars Undergo Inspection?