What is the typical speed of the Harmony train?

What does the vehicle inspection validity period refer to?

Vehicle inspection validity period refers to the period during which the annual vehicle inspection is valid. The documents required for vehicle inspection include: 1. Proof of compulsory traffic accident liability insurance for motor vehicles; 2. Original copy of the motor vehicle safety technical inspection qualification certificate; 3. Original copy of the motor vehicle driving license and original ID card. The classification of vehicle annual inspections is as follows: 1. For commercial passenger vehicles, inspection is required once a year within the first 5 years, and every 6 months after exceeding 5 years; 2. For trucks and large or medium-sized non-commercial passenger vehicles, inspection is required once a year within the first 10 years, and every 6 months after exceeding 10 years; 3. For small and mini non-commercial passenger vehicles, inspection is required once every 2 years within the first 6 years, once a year after exceeding 6 years, and every 6 months after exceeding 15 years.

12

1

Share

Does a newly added battery water in a car need to be charged?

After adding new battery water to a car, it should be left idle for about 2 hours to allow the added water to fully mix with the original battery fluid before charging the battery to ensure charging quality. Car battery water, also known as electrolyte, is a dilute sulfuric acid solution made from distilled water and sulfuric acid. It is added to the battery to react with the battery plates for charging and discharging. A car battery, referred to as a storage battery, is a type of battery that works by converting chemical energy into electrical energy. The car battery is a lead-acid battery, which is made of lead and its oxides, with sulfuric acid solution serving as the electrolyte.

10

1

Share

What are 95 and 98 gasoline?

95 and 98 are both octane ratings for gasoline. 95-octane gasoline is composed of 95% isooctane and 3% n-heptane. When the engine compression ratio is high, high-octane gasoline should be used. If low-octane gasoline is used with a high compression ratio, it can cause abnormal combustion, resulting in knocking, increased fuel consumption, and reduced driving power. 98-octane gasoline refers to gasoline with an octane rating equal to a mixture of 98% isooctane and a certain percentage of n-heptane. 98-octane gasoline has better anti-knock properties and higher power output, while also producing fewer harmful substances and lower exhaust emissions. Different octane ratings indicate different levels of octane values, with higher-rated gasoline having higher octane values and better stability. The differences in gasoline octane ratings: The higher the octane rating, the better the anti-knock performance. Anti-knock performance refers to the gasoline's ability to resist knocking during engine combustion. When refueling, different gasoline grades should be selected based on the engine's compression ratio (the ratio of the cylinder's maximum volume at bottom dead center to its minimum volume at top dead center). Long-term effects of using the wrong gasoline octane rating: Using a higher octane gasoline in a vehicle designed for lower octane will not cause damage, but the increased octane value can alter the fuel's ignition point, leading to delayed combustion in the engine. This reduces the engine's power output and thermal efficiency. Conversely, using lower octane gasoline in a high-octane vehicle can cause engine knocking, increased resistance during the upward stroke, and abnormal wear on pistons and cylinders, potentially leading to severe engine damage. Refueling precautions: When refueling: Turn off the engine, avoid making phone calls or using mobile devices, and do not use open flames in the gas station. Always turn off the engine while refueling. If there is a queue, wait in line orderly without cutting in. Selecting gasoline: Always choose reputable gas stations with high-quality fuel. Avoid gas stations with poor-quality gasoline. Long-term use of low-quality gasoline can lead to increased carbon deposits in the engine. It's essential to select both a reputable gas station and the correct gasoline octane rating. Choosing the right gasoline octane rating is crucial. Most vehicles have the manufacturer's recommended gasoline octane rating printed inside the fuel filler cap. Follow this recommendation when refueling. If the label states: "Use 92 or higher octane gasoline," then either 92 or 95 octane can be used, but they should not be mixed. If the label states: "Use no less than 95 octane gasoline," then only 95 or 98 octane gasoline should be used, and 92 octane must be avoided. Higher octane gasoline is not always better; the engine's compression ratio must match the gasoline octane rating. Using higher octane gasoline in a low-compression engine may reduce knocking but can alter the ignition timing, leading to increased carbon deposits in the cylinders. Long-term use can negatively impact the engine's lifespan. Using lower octane gasoline in a high-compression engine can cause knocking, accelerating wear and tear on engine components.

16

4

Share

Where is the Wuling Hongguang van's radiator located?

The radiator of the Wuling Hongguang van is located inside the engine compartment. The car radiator refers to the car's cooling system component. Taking the 2020 Wuling Hongguang as an example, its body dimensions are: length 4390mm, width 1660mm, height 1750mm, with a wheelbase of 2720mm and a fuel tank capacity of 50 liters. The 2020 Wuling Hongguang is equipped with a 1.2L naturally aspirated engine, delivering a maximum power of 56kW and a maximum torque of 110Nm, paired with a 5-speed manual transmission. It features a MacPherson strut front suspension and a leaf spring rear suspension.

17

1

Share

How to Reset the Maintenance Light on a Bora?

To reset the maintenance light on a Bora, follow these steps: 1. Press and hold the wrench button, then turn on the ignition. 2. Release the wrench button and press the minute adjustment button on the time setting. 3. Turn off the ignition, release the time button, and then turn on the ignition again or start the engine to complete the maintenance light reset. Taking the Bora 2021 model as an example, its body dimensions are: length 4663mm, width 1815mm, height 1462mm, wheelbase 2688mm, minimum ground clearance 126mm, fuel tank capacity 50l, trunk capacity 506l, and curb weight 1320kg.

3

5

Share

Why is the car air conditioning not cold enough?

Car air conditioning not being cold enough can be caused by: 1. Lack of refrigerant (Freon); 2. Dirty evaporator core; 3. Malfunction in the air conditioning system; 4. Excessive impurities in the refrigerant or refrigeration oil, leading to clogging; 5. Dirty condenser, reducing heat dissipation capacity; 6. Dirty, odorous, or clogged air filter. Methods to check why the car air conditioning is not cold enough include: 1. Checking if the compressor is working properly; 2. Inspecting the refrigerant lines for leaks or damage; 3. Checking the refrigerant level; 4. Cleaning or replacing the air filter. Car air conditioning refers to: The air conditioning device installed in a car, whose functions are: 1. Cooling, heating, ventilating, and purifying the air inside the cabin; 2. Providing a comfortable environment for passengers, reducing driver fatigue, and improving driving safety.

1

0

Share

What is the typical speed of the Harmony train?

What does the vehicle inspection validity period refer to?

Does a newly added battery water in a car need to be charged?

What are 95 and 98 gasoline?

Where is the Wuling Hongguang van's radiator located?

How to Reset the Maintenance Light on a Bora?

Why is the car air conditioning not cold enough?

How to Open the Fuel Tank Cap of the Buick Envision?

How many liters of brake fluid does the Murano use?

What car has a vertical bar as its logo?

Where is the charcoal canister located in a car?