Are Automatic Transmissions Prone to Failure?

Do 5-year-old tires need to be replaced?

This needs to be judged based on usage conditions. Theoretically, 5-year-old tires should be replaced. You can check tire wear conditions through the following methods. First point: If the tire shows signs of aging (for example: numerous small cracks on the tread groove bottom or sidewall that are about to damage the tire body), this tire needs to be replaced immediately, regardless of how long it has been used or how much it has worn. Second point: If the remaining groove depth of the tire tread reaches or falls below 1.6 millimeters (there are indicator marks in the longitudinal straight grooves of the tire tread indicating this depth), the tire must be replaced because its drainage capacity has significantly decreased, making driving on wet surfaces more dangerous. In addition, damaged tires should also be carefully evaluated for replacement. For example, tires that have been run flat may still be drivable when inflated, but since the internal structure may have been damaged, it is recommended to replace them with new tires promptly. It is particularly important to note that bulging tires must not continue to be used.

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How Many Years Until Mandatory Scrapping of Motor Vehicles?

According to Article 5 of the 'Mandatory Scrapping Standards for Motor Vehicles', the service life limits for various types of motor vehicles are as follows: 1. Taxis: Small and mini taxi passenger vehicles have a service life of 8 years, medium-sized taxi passenger vehicles 10 years, and large taxi passenger vehicles 12 years; rental passenger vehicles have a service life of 15 years. 2. Training passenger vehicles: Small training passenger vehicles have a service life of 10 years, medium-sized training passenger vehicles 12 years, and large training passenger vehicles 15 years. 3. Public transport passenger vehicles: Public transport passenger vehicles have a service life of 13 years. 4. Other commercial passenger vehicles: Other small and mini commercial passenger vehicles have a service life of 10 years, while large and medium-sized commercial passenger vehicles have a service life of 15 years. 5. Full trailers and semi-trailers: Full trailers and semi-trailers for hazardous material transport have a service life of 10 years, container trailers 20 years, and other semi-trailers 15 years.

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What does 'big oil' and 'small oil' mean?

Small oil refers to illegally processed (self-processed and produced) diesel or gasoline, which is cheaper than the fuel from gas stations. CNPC, CNOOC, and Sinopec are collectively referred to as the 'big three oils'. Introduction to gasoline: Gasoline is a volatile and flammable liquid hydrocarbon mixture obtained from the distillation and cracking of petroleum, used as fuel. It appears as a transparent liquid, is flammable, and has a distillation range of 30°C to 220°C. Principle of thermal expansion and contraction: Thermal expansion and contraction refer to the property of objects expanding when heated and contracting when cooled. This occurs because the movement of particles (atoms) within the object changes with temperature. When the temperature rises, the vibration amplitude of the particles increases, causing the object to expand; when the temperature drops, the vibration amplitude decreases, causing the object to contract.

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Is Burning Tires Harmful to Health?

Tires are synthetic rubber products that contain aromatic hydrocarbons, halogens, nitrogen, and sulfur as a rubber softener. Burning them produces carcinogenic substances harmful to human health, such as dioxins and phenols. It also generates sulfur dioxide, nitrogen dioxide, halogen gases containing chlorine, and even cyanide gas or cyanide compounds, which pollute the environment, acidify the soil, and can severely damage human health. Composition of tires: 1. Main components Most modern car tires are primarily made of natural rubber or synthetic rubber. Natural rubber offers superior overall performance compared to synthetic rubber, which is why premium tires often use natural rubber. 2. Carbon black additives To achieve the required properties for tire manufacturing, various chemical materials, known as chemical additives, must be mixed into the rubber. One crucial additive is carbon black. Due to carbon's unique adsorption properties, it bonds exceptionally well with rubber molecules, enhancing the rubber's hardness, strength, and wear resistance. 3. Primary materials Since carbon black and rubber are roughly equal in quantity, the main material of car tires is essentially a composite of rubber and carbon black.

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Should I repaint if the front bumper is slightly scratched?

First, check whether the paint is severely scratched and confirm if it's actually scratched off. Sometimes, the paint isn't scratched off, but there might be something else stuck on it. In such cases, simply use some cleaner or coarse wax for a quick treatment. If the paint is scratched but the scratch isn't severe and the primer isn't exposed, polishing or using coarse wax for a simple treatment will suffice. If the bumper is cracked, it can be repaired. Below is some related information on repairing cracks: 1. Large cracks: Not recommended for repair, as even if it can be patched, it's difficult to ensure its buffering effect. In such cases, replacing the bumper with a new one is necessary. 2. Function of car bumpers: Car bumpers (impact beams), located in most areas at the front and rear of the vehicle, are designed to prevent external damage from affecting the vehicle's safety systems and have the ability to reduce injuries to passengers during high-speed collisions.

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Can China VI Vehicles Use Non-Standard Fuel?

China VI vehicles cannot use non-standard fuel. Here is relevant information: Advantages of China VI standard vehicles: "China VIa" is essentially a transitional phase between "China V" and "China VI", while "China VIb" represents the true "China VI" emission standard. Without considering the impact of test conditions and procedures, compared to the "China V" emission standard limits, the CO limit for China VIa gasoline vehicles is 50% stricter. China VI vehicles are equipped with additional components compared to China V vehicles. Additionally, automakers incur extra costs from vehicle certification announcements, various tests, and production, resulting in significantly higher prices for China VI vehicles compared to China V vehicles. China VI-compliant models: Currently, there are several hundred models that meet the China VI standard. The three major luxury brands—BMW, Mercedes-Benz, and Audi—have largely completed their upgrades to the China VI standard. Popular models from Volkswagen, Toyota, Honda, Nissan, and others have also mostly been upgraded. Some of the more popular models include the Acura RDX, Volvo XC60, Infiniti QX50, Cadillac XT4, and Camry. Domestic brands such as the new-generation Roewe RX5, Changan, and Yidong also comply with the China VI standard.

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Are Automatic Transmissions Prone to Failure?

Do 5-year-old tires need to be replaced?

How Many Years Until Mandatory Scrapping of Motor Vehicles?

What does 'big oil' and 'small oil' mean?

Is Burning Tires Harmful to Health?

Should I repaint if the front bumper is slightly scratched?

Can China VI Vehicles Use Non-Standard Fuel?

Will Insurance Cover Flood-Damaged Cars Due to Natural Disasters?

Is it a violation to change lanes in a variable lane?

How to Use a Car Key Decoder?

How to Know How Much Oil is Left in a Motorcycle?