What causes the noise from the aluminum seat of the rear shock absorber in Volkswagen?

Differences Between LNG and CNG

LNG and CNG mainly differ in terms of their state of existence, safety hazards, volumetric energy density, and environmental friendliness. Below are the key differences between LNG and CNG: 1. State of Existence: When natural gas is cooled to approximately -162°C at normal pressure, it changes from a gaseous state to a liquid state, known as liquefied natural gas (LNG). Compressed natural gas (CNG), on the other hand, is natural gas pressurized and stored in containers in a gaseous state. 2. Safety Hazards: The primary method for storing and transporting natural gas is CNG. Due to the high pressure of compressed natural gas, it poses many safety hazards, such as a higher risk of fire. In comparison, LNG has a higher ignition point—auto-ignition temperature of about 590°C—and a narrower explosion range (5%~15%). Being lighter than air and easier to disperse, LNG offers higher safety. 3. Volumetric Energy Density: The volumetric energy density of CNG is about 26% that of gasoline, while LNG's volumetric energy density is about 72% that of gasoline, more than double that of CNG. 4. Environmental Friendliness: Natural gas must undergo strict pre-purification before liquefaction, resulting in significantly lower impurity levels in LNG compared to CNG. This makes it easier for LNG to meet stricter emission standards when used as vehicle fuel or for other combustion purposes.

9

4

Share

Which is More Expensive, the Golden or Silver Spirit of Ecstasy for Rolls-Royce?

Rolls-Royce's golden Spirit of Ecstasy is more expensive than the silver version. This is because only the Phantom Extended Wheelbase models feature the golden figurine, while all other models come with the silver version. The golden Spirit of Ecstasy can be considered a luxury edition, hence its higher price. Additionally, it's worth noting that the golden figurine is not made of solid gold but utilizes a gliding technique, a type of coating technology that ensures long-lasting color retention without fading. Below is some relevant information about Rolls-Royce: Brand Name: Rolls-Royce Motor Cars was formed by the merger of Rolls Motor Company and Royce Motor Company, named after its founders Henry Royce and Charles Rolls. Emblem Meaning: The three-dimensional emblem of Rolls-Royce is the well-known 'Spirit of Ecstasy.' She stands gracefully on the noble bonnet of a Rolls-Royce, leaning forward with her arms swept back and robes flowing in the wind, radiant and dazzling.

2

5

Share

What engine does the Hanteng X7 have?

The Hanteng X7's engine is provided by SAIC Group and is a domestically produced engine. The engine model of the Hanteng X7 is TLE4G15D, with a maximum power of 115kW, a maximum torque of 215Nm, and a maximum horsepower of 156. For daily maintenance of the Hanteng X7's engine, the following methods can be used: Use lubricating oil of the appropriate quality grade. For gasoline engines, SD--SF grade gasoline engine oil should be selected based on the additional devices in the intake and exhaust systems and usage conditions; for diesel engines, CB--CD grade diesel engine oil should be selected according to mechanical load, with the selection standard not lower than the manufacturer's requirements. Regularly change the engine oil and filter. The quality of any grade of lubricating oil will change during use. After a certain mileage, its performance deteriorates, leading to various engine problems. To avoid malfunctions, change the oil regularly based on usage conditions and maintain an appropriate oil level. When oil passes through the fine holes of the filter, solid particles and viscous substances in the oil accumulate in the filter. If the filter is clogged and oil cannot pass through, the filter may burst or the safety valve may open, allowing oil to bypass through the bypass valve, bringing contaminants back to the lubrication areas, accelerating engine wear and increasing internal pollution. Regularly clean the crankcase. During engine operation, high-pressure unburned gases, acids, moisture, sulfur, and nitrogen oxides from the combustion chamber enter the crankcase through the gap between the piston rings and cylinder walls, mixing with metal particles from component wear to form sludge. In small amounts, it remains suspended in the oil; in large amounts, it precipitates, clogging filters and oil passages, making engine lubrication difficult and causing wear. Regularly use a radiator cleaner to clean the radiator. Removing rust and scale not only ensures the engine operates normally but also extends the overall lifespan of the radiator and engine.

18

1

Share

What is the fuel tank capacity of the BAIC Weiwang 306 in liters?

The fuel tank capacity of the BAIC Weiwang 306 is 45L. Maintenance of the fuel tank is as follows: Drain accumulated water and sediment from the fuel tank, and check for any oil leakage at the fuel pipe joints and switches. For fuel tank caps equipped with air valves and steam valves, also check if the vent holes are clear. The filter screen at the fuel filler neck should remain intact to prevent impurities from entering the tank during refueling and clogging the fuel lines. The sealing gasket on the fuel filler cap should also be intact to prevent fuel from spilling out while driving. If the owner wants to know the remaining fuel level, they can observe the fuel gauge on the right side of the dashboard, marked with E and F. When the needle is near E, it indicates low fuel, and when it is near F, it indicates sufficient fuel. Methods to open the fuel tank: Mechanical key opening: This method is typically found on some hardcore off-road vehicles, but is generally not used in modern family cars. In-car switch method: The in-car fuel tank switch is located in different positions depending on the vehicle model. Remember to turn off the engine before refueling. Press-type opening method: The press-type fuel tank door opening is currently the most convenient method.

3

2

Share

Is the Cayenne a Porsche?

The Cayenne is an SUV model under the German automaker Porsche. Below is its relevant introduction: Exterior: The Porsche Cayenne features a stylish and dynamic appearance, with overall lines that are complete, smooth, and rich in sportiness. Netizens describe it as "tall and imposing in appearance, with a front face that exudes a strong presence." Interior: The Porsche Cayenne boasts finely crafted interiors; it is well-equipped; the seats offer good comfort; features like the heated steering wheel and the armrest design next to the seats are quite user-friendly; optional configurations such as the panoramic sunroof and compass cater to the needs of some consumers seeking individuality.

16

5

Share

What is the fuel consumption of the Corolla?

1.2t model has a fuel consumption of 7.1 liters per 100 kilometers, while the 1.8l hybrid model consumes 4.5 liters per 100 kilometers. Below is the relevant introduction of the Corolla: Exterior: The appearance is moderate and dignified, stable, without any outstanding highlights, making it more suitable for family use. Interior: The overall interior style is simple, the center console design is conventional, the seats are spacious and comfortable, the air conditioning effect is good, and the workmanship is excellent. Space: The 2014 Corolla has also been lengthened in terms of body size, with its wheelbase reaching 2700mm after the extension. In terms of seating space, when the front seat is adjusted to the lowest position for a tester with a height of 177cm, there is a fist's worth of headroom. When the tester moves to the rear seat, there is 2 fingers' worth of headroom and 1 fist and 3 fingers' worth of legroom. The floor bulge in the middle position of the Corolla's rear seat is very small.

16

2

Share

What causes the noise from the aluminum seat of the rear shock absorber in Volkswagen?

Differences Between LNG and CNG

Which is More Expensive, the Golden or Silver Spirit of Ecstasy for Rolls-Royce?

What engine does the Hanteng X7 have?

What is the fuel tank capacity of the BAIC Weiwang 306 in liters?

Is the Cayenne a Porsche?

What is the fuel consumption of the Corolla?

Where to Collect the Vehicle Annual Inspection Sticker?

What to Do If the Vehicle Inspection is Overdue for One Month?

How Long Does It Take to Get a Driver's License?

How Many Liters of Antifreeze Should Generally Be Added?