What are the octane ratings of 92 and 95 gasoline?

What Causes Loud Noise from Car AC Fan When Turned On?

Reasons for loud noise from car AC fan when turned on: The blades of the exhaust fan inside the AC may be deformed, suggesting replacement of the exhaust fan; the motor of the exhaust fan inside the AC may be damaged, suggesting replacement of the exhaust fan; there may be excessive dirt inside the AC, suggesting cleaning of the AC. Below is a brief introduction to car AC fans: 1. Car fan: The car fan generally cools the radiator. The fan's operation drives air flow, which helps lower the water temperature, but the water temperature is not the lower the better. An engine temperature that is too low is also not good. Of course, there are also components like the thermostat and water pump working together, so cooling only starts when a certain temperature is reached. 2. Car AC: Generally includes refrigeration devices, heating devices, and ventilation devices. This combined system makes full use of the limited space inside the car, with a simple structure and easy operation, making it a popular modern car AC system internationally.

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Do Police Conduct Vehicle Checks on Highways?

Generally, traffic police are not allowed to conduct vehicle checks on highways. Below is relevant information: 1. Relevant Regulations: If vehicles must be intercepted and inspected on highways due to "emergency duties," checkpoints should be set up at toll stations, ramp entrances, etc. Clear temporary inspection signs should be placed in advance to inform drivers ahead to slow down and avoid accidents. "Emergency duties" have a specific meaning and cannot be equated with general traffic violations on highways. There are many ways to correct violations, and forcibly intercepting vehicles is not always necessary. 2. Relevant Laws: Article 69 of the "Road Traffic Safety Law": No unit or individual may intercept or inspect moving vehicles on highways, except for people's police of public security organs performing emergency duties in accordance with the law.

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How many minutes does it take for the car's water temperature to rise?

The car's water temperature usually rises within about 10 minutes under normal circumstances. The time it takes for the water temperature to rise depends on the external environment. In winter when temperatures are low, it may take longer for the water temperature to rise, while in summer when temperatures are high, the water temperature will rise more quickly. Additional information: Below is an introduction to seasonal maintenance for the cooling system: 1. Visually inspect all parts of the water pump for any signs of leakage: If any leakage is found, identify the cause and resolve it immediately. Do not continue driving with the issue. 2. Check the freezing point of the antifreeze: Generally, the freezing point of the antifreeze should be 5 to 10°C lower than the lowest temperature in the area where the vehicle is driven. For example, for vehicles in Beijing, an antifreeze with a freezing point of -25 to -30°C will ensure safe operation during winter.

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Can Used Tires Be Sold?

Don't throw away your replaced tires. Some relatively new-looking used tires can be recycled, typically selling for about 20-160 yuan for four tires, with the specific price depending on the depth of the tire tread and whether there is any severe damage. Here are the uses of old tires: 1. Tire Retreading: Hand over the replaced tires to reliable professional organizations for purchase to prevent them from being exploited by unscrupulous businesses, which could endanger driving safety. These organizations that recycle old tires often have well-established mechanisms. If it is determined that the old tire meets the criteria for retreading, it undergoes a specialized repair process and is transformed into a retreaded tire. 2. Turning Waste into Treasure: If the tires do not meet the standards, they are usually processed for oil refining. Not only can beneficial products be extracted, but the rubber powder and rubber granules from the processed tires are widely used in modified asphalt, waterproof materials, rubber floor tiles, or rubber tracks. Of course, these discarded old tires can also be cleaned and directly repurposed into chairs, tables, and benches, not only saving money but also allowing for customized designs based on personal preferences, which is also an eco-friendly approach.

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What is the reason for not being able to shift gears after the car has been parked for a long time?

The reason why a car cannot shift gears after being parked for a long time is due to clutch cable failure, clutch master cylinder failure, etc. The following are the hazards of parking a car for a long time: 1. The battery is prone to losing power: Even if all the electrical appliances on the car are turned off, the battery will still discharge because the car itself has many electronic components that need to operate (such as alarms, etc.). Therefore, even if the car is not driven for a long time, it should be started periodically to allow the battery to recharge and ensure it remains fully charged. 2. Damage to the car paint: Substances such as air conditioner water and bird droppings, which are highly acidic or alkaline, can severely damage the car paint. Especially with the increasing severity of environmental pollution, rain may contain certain acidity, which can corrode the car paint. Additionally, prolonged parking outdoors under the scorching sun can also cause significant damage to the car paint. 3. Tire problems: Due to long-term parking, only part of the tire bears the load, causing localized compression and deformation. The longer the time, the harder it is for the deformed part to recover, eventually leading to unusable tires. If not replaced in time, driving at high speeds can pose a danger. It is recommended to inflate the tires fully in advance.

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What items are checked during a vehicle inspection?

Vehicle inspections primarily cover the following aspects: 1. Vehicle documentation: Checking for the presence of the vehicle user manual, certificate of conformity (inspection certificate for imported vehicles), and verifying the completeness of factory inspection marks on the vehicle body. 2. Vehicle exterior: Measuring the overall dimensions including length, width, height, cargo compartment side panel height and area, track width, and wheelbase. 3. Vehicle equipment: Inspecting the engine, chassis, body, and auxiliary equipment for cleanliness, completeness, and functionality; examining paint finish for uniformity and aesthetics; verifying whether major assemblies have been replaced and if they match the initial inspection records.

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What are the octane ratings of 92 and 95 gasoline?

What Causes Loud Noise from Car AC Fan When Turned On?

Do Police Conduct Vehicle Checks on Highways?

How many minutes does it take for the car's water temperature to rise?

Can Used Tires Be Sold?

What is the reason for not being able to shift gears after the car has been parked for a long time?

What items are checked during a vehicle inspection?

How many more years can National V emission standard vehicles be driven?

Where is the car battery power indicator light located?

What is the working principle of a four-stroke gasoline engine?

Is an Annual Inspection Required for C1 License Points Deduction?