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What is the Difference Between Regular Tires and Replacement Tires?

1 Answers
PaisleeFitz
07/29/25 9:02pm
Replacement tires and regular tires differ in brand: replacement tires do not have the original manufacturer's markings, while regular tires do. Replacement tires serve as spare tires. Below is relevant information about tires: 1. Composition of Tires: Tires are typically composed of three parts—the outer tire, inner tube, and bead—though some do not require an inner tube, featuring an inner layer of highly airtight rubber and requiring specialized rims. 2. Usage of Tires: Tires are often used under complex and demanding conditions, enduring various deformations, loads, forces, and extreme temperatures during operation. Therefore, they must possess high load-bearing capacity, traction performance, and cushioning performance, along with high wear resistance, flexibility, and low rolling resistance and heat generation.
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More Forum Discussions

What is the function of a car throttle position sensor?

The main function of the car throttle position sensor is to detect whether the engine is in idle state or load state, and whether it is in acceleration or deceleration state. Detailed information is as follows: 1. The rotating shaft of the resistor is linked with the throttle, and it has two contacts: the full-open contact and the idle contact. When the throttle is in the idle position, the idle contact closes, and the idle signal is output to the computer; 2. When the throttle is in another position, the idle contact opens, outputting voltage signals corresponding to different rotation angles of the throttle. The computer identifies the engine load based on the signal voltage value; 3. The computer recognizes whether the working condition is acceleration or deceleration based on the change of the signal voltage over a certain period of time. The computer adjusts the fuel injection amount or performs fuel cut-off control based on these working condition information.
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What does the MAX button in the car mean?

In the car, the MAX button is usually the strong cooling button for the air conditioning. Here is some relevant information about the MAX button in cars: How to use the MAX button: Generally, only the air conditioning system in the car has a MAX button. When the MAX button is pressed, the air conditioning will enter the maximum cooling mode, which can quickly lower the temperature inside the car. The car air conditioning is an important comfort feature in a vehicle. The cooling principle of the air conditioning is actually quite simple. When cooling is needed, the AC button must be pressed so that the compressor clutch engages, allowing the engine to drive the compressor. The compressor then continuously compresses the refrigerant and delivers it to the evaporator. Meaning of MAX in other locations: If MAX is found on the engine oil dipstick, it indicates the maximum oil level. When adding oil, ensure that the oil level does not exceed the MAX mark.
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What are the techniques for shifting gears without depressing the clutch?

Here are the detailed techniques for shifting gears without depressing the clutch: 1. The sequence for upshifting is to release the throttle, disengage the gear, wait for the engine speed to drop, and then engage the higher gear. 2. The sequence for downshifting is to release the throttle, disengage the gear, rev the throttle to increase engine speed, and then engage the lower gear. Below is the working principle of the clutch: 1. When the inner race is fixed, the outer race rotates clockwise and the wedge block does not lock, allowing the outer race to rotate freely. 2. When the outer race rotates counterclockwise, the wedge block locks, preventing the outer race from rotating. The functions of the clutch include: 1. Gradually increasing the driving force of the car to ensure a smooth start. 2. Temporarily separating the engine and transmission for gear shifting. 3. Preventing overload in the transmission system. 4. Reducing torsional vibration and impact from the engine, thereby extending the service life of the transmission gears.
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What is Auto Finance?

Auto finance refers to the option available for individuals who lack sufficient funds to purchase a vehicle and require a loan, allowing them to choose different car models and payment methods based on their specific needs. Compared to traditional banks, auto finance represents a new alternative for car purchases. Here are key points to understand about auto finance: Procedures: No collateral is required from the loan applicant. Eligibility is based on having a stable job, residence, consistent income, repayment capacity, and good personal credit. Down Payment: Features low down payment ratios and extended loan terms. The minimum down payment can be as low as 20% of the vehicle price, with a maximum loan term of up to 5 years, and no mortgage fees are charged. Interest rates from auto finance companies are generally higher than those from banks. Examples include SAIC-GMAC Automotive Finance, Volkswagen Finance, Dongfeng Motor Finance, Mercedes-Benz Finance, Ford Finance, and Toyota Finance. Among these, SAIC-GMAC Automotive Finance is the largest auto finance company in China.
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What are the Three Electric Components in New Energy Vehicles?

New energy vehicles' three electric systems refer to the battery, motor, and electronic control system. Below is an introduction to these three components: Battery: The battery here does not refer to the one that powers vehicle lighting, air conditioning, etc., but rather the high-voltage battery responsible for providing the power source. The performance of a pure electric vehicle's battery directly determines its driving range. Motor: The motor system is the high-voltage motor that provides torque to the vehicle, supplying it with power. A vehicle can be equipped with one, two, or four motors, which are currently divided into two types: AC asynchronous motors and permanent magnet synchronous motors. Electronic Control System: Its main function is to collect various signals such as the accelerator, brake pedal, and steering wheel, and issue corresponding instructions based on the received information. The electronic control system needs to control the speed and direction of the drive motor, as well as manage energy recovery and other tasks.
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How Long Does Car Body Repair and Painting Take?

Car body repair and painting duration depends on specific circumstances. Small-scale body repair and painting typically takes 2 to 3 days to complete, while large-scale projects require 5 to 7 days. Below is relevant information about body repair and painting as well as automotive paint layers: Introduction to Body Repair and Painting: Body repair and painting is an automotive restoration technique that involves repairing deformed sections of a vehicle's metal body to restore its original shape, followed by spraying specialized paint to make the repaired metal surface match the undamaged areas. Composition and Functions of Automotive Paint Layers: Electrophoretic coating: Primarily for rust prevention. After the entire vehicle body is assembled, it is immersed in an electrophoretic tank to form this protective layer over the entire surface. Primer coating: Also mainly serves as rust protection while enhancing adhesion with subsequent paint layers. Base coat: Primarily provides aesthetic appeal. All vehicle paint colors are displayed through this layer. Clear coat: Mainly protects the paint layers while enhancing the glossiness of the vehicle's finish.
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