Does Hitting the Underbody Affect a Car?

How many more years can a National IV standard car be driven?

Currently, the country has implemented the National VI emission standard for motor vehicles. For National IV standard vehicles, they are only restricted from new registrations without measures like traffic restrictions. How long they can actually be driven still depends on the vehicle's operating condition and mandatory scrapping age. Automotive emission standards regulate the permissible levels of harmful gases emitted from vehicle exhaust, including CO (carbon monoxide), HC+NOx (hydrocarbons and nitrogen oxides), and PM (particulate matter, soot). Relevant information about National IV standard is as follows: 1. The National Fourth Stage Motor Vehicle Pollutant Emission Standard, abbreviated as "National IV Emission Standard" or National IV Standard. 2. Compared to National III standard, National IV requires light-duty vehicles to reduce single-vehicle pollutant emissions by approximately 50%, heavy-duty vehicles to reduce single-vehicle emissions by about 30%, and particulate matter emissions by over 80%.

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What does the vehicle identification number refer to?

Vehicle identification number, fully known as Vehicle Identification Number, consists of 17 characters, so it is commonly called the seventeen-digit code. It contains information such as the vehicle's manufacturer, year, model, body type and code, engine code, and assembly location. The details about the vehicle identification number are as follows: 1. Body type: Refers to the general structure or shape of the vehicle, such as the number of doors and windows, the characteristics of the cargo being transported, and the type of roof (such as van body, fastback body, hatchback body), which distinguishes the vehicle. 2. Engine type: Refers to the characteristics of the power unit, such as the fuel used, number of cylinders, displacement, and static braking power. Engines installed in passenger cars, multi-purpose passenger vehicles, or trucks with a gross vehicle weight rating of 10,000 lb or less should indicate the professional manufacturer and model. Kind: The manufacturer's designation for all vehicles within the same brand that share certain structural similarities, such as body, chassis, or cab type. 3. Make: The name given by the manufacturer to a group of vehicles or engines. Model: Refers to the name given by the manufacturer to vehicles that share the same type, make, kind, series, and body type. 4. Model year indicates a specific model year, and as long as the actual cycle does not exceed two legislative years, the actual production year of the vehicle can be disregarded.

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How Many Kilometers Should Transmission Fluid Be Replaced?

Transmission fluid generally needs to be replaced every 40,000 to 80,000 kilometers. If you frequently drive on highways, you can extend the interval by an additional 20,000 kilometers. More details about transmission fluid are as follows: 1. Transmission fluid, also known as gear oil, is used in the transmission system and serves as a cleaning product for the transmission system. 2. If the transmission fluid is not replaced for a long time, it can easily become thick, leading to reduced oil pressure. This can hinder internal cooling and cause the oil temperature to rise excessively. The lubrication effect deteriorates, resulting in rapid wear of components and damage to internal transmission parts. Here are some precautions to consider when replacing transmission fluid: 1. Specialized equipment for automatic transmissions must be used to completely remove the old ATF fluid and other impurities. Automatic transmission fluid cannot be fully drained using atmospheric pressure alone, as this method only removes about half of the old fluid. Residual fluid, along with sludge and impurities, can accumulate in the valve body, torque converter, and cooling lines, leading to blockages in the internal oil passages. 2. When replacing transmission fluid, it is essential to use the same type of fluid as originally specified for the vehicle. Manual transmission vehicles should only use manual transmission fluid, while automatic transmission vehicles (including semi-automatic models) must use automatic transmission fluid. Additionally, ensure the correct fluid specification is selected. 3. Currently, the best method for replacing transmission fluid is dynamic fluid replacement. This involves using specialized transmission cleaning equipment to thoroughly circulate and drain the old fluid while the transmission is running, before adding new fluid. This method achieves a fluid replacement rate of over 90%.

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What Happens If You Don't Change the Antifreeze for 10 Years?

Generally, the replacement interval for automotive antifreeze is two years or 40,000 kilometers. If antifreeze is not changed for 10 years, its effectiveness will diminish. Once its performance declines, it can no longer ensure efficient engine cooling, leading to reduced engine performance and a shorter engine lifespan. However, for some luxury cars like Mercedes-Benz, the antifreeze replacement interval is 10 years or 200,000 kilometers. Relevant information about antifreeze is as follows: 1. Antifreeze prevents the coolant from freezing during cold winter parking, which could otherwise crack the radiator or damage the engine cylinder block. Its full name is antifreeze coolant. 2. Antifreeze is a coolant containing special additives, primarily used in liquid-cooled engine cooling systems. It offers excellent properties such as preventing freezing in winter, boiling in summer, and resisting scale and corrosion year-round.

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What is the appropriate tire pressure for a car?

Under normal circumstances, the recommended tire pressure for cars is 2.5 kgf/cm² in winter and 2.2 kgf/cm² in summer. The maximum allowable tire pressure is indicated on the sidewall of the tire. Generally, a reasonable tire pressure is 70% to 80% of the maximum pressure marked on the tire, but it is best not to exceed the maximum pressure indicated. Below are relevant details about car tire pressure: 1. If the car is fully loaded (5 people), adjusting the tire pressure to around 2.5 kgf/cm² is more suitable. For two passengers, a tire pressure of 2.3 kgf/cm² is also normal. 2. For daily tire use, it is important to pay attention to tire pressure. Generally, cars travel at high speeds, and the shape of the tire undergoes high-frequency alternating changes. If the pressure is insufficient, deformation increases, causing excessive wear on the tread edges. The tire body may twist and deform due to inability to withstand ground pressure, generating heat and accelerating tire wear, ultimately leading to a blowout. 3. Excessive pressure can also make the tire too rigid, losing its necessary elasticity and shock absorption capacity. This not only reduces grip but also causes uneven tread depth due to excessive wear in the central tread. Tires operating at high speeds may also fail to withstand excessive expansion pressure, leading to a blowout. Therefore, both overinflation and underinflation pose blowout risks, and tire pressure should not be overlooked. Always maintain the standard tire pressure as recommended by the manufacturer, including the spare tire pressure.

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What to Do When a Car Belt Slipping?

Solutions for car belt slipping: 1. Add counterweights when the belt conveyor slips until the belt no longer slips; 2. Adjust the tension stroke to increase the tension force; 3. Re-vulcanize or increase the tension stroke; 4. Adjust the tensioning device to increase the initial tension; 5. Timely maintenance and replacement of the tail roller bearings. The belt is an important part of the engine's valve timing system, ensuring accurate intake and exhaust timing by connecting to the crankshaft and maintaining a certain transmission ratio. Belts are used instead of gears for transmission because they produce less noise, have minimal self-variation, and are easier to compensate.

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Does Hitting the Underbody Affect a Car?

How many more years can a National IV standard car be driven?

What does the vehicle identification number refer to?

How Many Kilometers Should Transmission Fluid Be Replaced?

What Happens If You Don't Change the Antifreeze for 10 Years?

What is the appropriate tire pressure for a car?

What to Do When a Car Belt Slipping?

What are the signs of a faulty front oxygen sensor?

How to Perform Pressure Testing on a Car Air Conditioning System?

What is the best method to judge the distance between vehicles?

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