Why Can't a Car Spare Tire Be Used for a Long Time?

Is 93 gasoline the current 92 gasoline?

92 gasoline is the previous 93 gasoline, they are the same type of gasoline. 92 is the National V standard, equivalent to the original 93 National IV standard. Currently in China's market, gasoline comes in grades such as 90, 93, 95, and 97. These numbers actually represent the octane rating of the gasoline, indicating its anti-knock performance, and are unrelated to the cleanliness of the gasoline. Since the nationwide unified supply of National V standard was implemented, 93 gasoline corresponds to 92, and 97 corresponds to 95, rather than the current 98. The higher the octane number, the better the anti-knock performance. Because emission standards have become more stringent, in the long run, the upgraded octane numbers can not only reduce pollutant emissions but also extend the vehicle's service life and reduce maintenance costs. Furthermore, it decreases corrosion to the car engine and deposits in the intake system, protecting the engine and emission system, providing better protection for the vehicle. The recommended gasoline grade for a car can be found on the fuel tank cap. When using the vehicle, it is essential to strictly adhere to the specified gasoline grade. Otherwise, it may affect engine performance, leading to insufficient power, increased noise, and heightened vibrations, which in turn can increase fuel consumption. Therefore, it is crucial to use the specified gasoline grade when refueling.

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What is the fuel tank capacity of the 2017 Leiling in liters?

The fuel tank capacity of the 2017 Leiling is 53 liters. The vehicle is equipped with two engine options: a 1.2-liter turbocharged engine and a 1.8-liter naturally aspirated engine, and it features a front-engine, front-wheel-drive configuration. Starting from the 2017 model year, the fuel tank capacity of the Leiling has been reduced. The 2018 model has capacities of 50 liters and 45 liters; the 2019 model has a 50-liter capacity; the 2021 model has a 50-liter capacity; and the 2022 model has capacities of 50 liters and 43 liters. During actual refueling, the amount of fuel may exceed the rated capacity. This is because the fuel tank capacity specified by the manufacturer is measured from the bottom of the tank to the safety limit, and there is additional space from the safety limit to the tank opening. This space ensures that the fuel can expand when temperatures rise without overflowing the tank. If fuel is filled up to the tank opening during refueling, the actual amount of fuel may exceed the rated capacity. To check the remaining fuel level, owners can observe the fuel gauge on the right side of the instrument panel, which is marked with 'E' and 'F'. When the needle is close to 'E', it indicates low fuel, and when it is near 'F', it means the fuel level is sufficient.

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What is the difference between HB3 and 9005?

HB3 and 9005 are the same model specifications, and sometimes both HB3 and 9005 are labeled together, which is the method of labeling for U.S. standard car lights. Car headlights include high beams, low beams, fog lights, and turn signals, and there are many types of car bulbs, mainly divided into H and D categories, which can be distinguished by the number of lamp pins and tabs. Common models include H1, H3, H4, H7, H11, etc., and different types of bulbs are used for different positions. Other commonly used bulbs for headlights include turn signal bulbs, such as PY21W; position lights are mostly W5W, H9, H10, H11, H12, etc.; rear lights commonly use bulbs such as P21W, P21/5W, etc. D represents xenon lamps, and commonly used xenon lamp models include D1S, D2S, D3S, D1R, D2R, etc. Odd numbers indicate with an igniter, and even numbers without an igniter; 2 indicates the presence of mercury, while 3 and 4 are mercury-free; S is used for lenses, and R is used for reflectors. Methods to distinguish car bulb models: determine whether the headlight is a combined high and low beam, if so, it means the headlight model is H4; if the headlight has separate high and low beams, you can check the manual that came with the car to find the specific model of your headlight. You can also open the hood, remove the headlight protective cover, take out the bulb, and identify the headlight model by the lamp pins and base. If the headlight has 1 lamp pin and a flat rectangular metal base, it is H1; if the headlight has 3 lamp pins, a round metal base, and 3 protruding tabs on the outer edge, it is H4; if the headlight has 2 lamp pins, a round metal base, and 1 protruding tab on the outer edge, it is H7; if the headlight has 2 lamp pins, an elliptical socket with 1 longer protruding tab on the lower edge, it is H11; if the headlight has 2 lamp pins, an elliptical socket with 1 smaller protruding tab on the upper edge, it is HB3 (also known as 9005); if the headlight has 2 lamp pins, an elliptical socket with 2 smaller protruding tabs on the upper edge, it is HB4 (also known as 9006).

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What is the normal level of noise inside a car on the highway?

A noise level of around 60 decibels inside a sedan is considered normal. According to the "Technical Conditions for Safe Operation of Motor Vehicles" issued and implemented by the former National Bureau of Technical Supervision on January 1, 1998, the noise level inside passenger vehicles should not exceed 82 decibels; the noise level near the driver's ear should not exceed 90 decibels. A range of 40-60 decibels is equivalent to the sound level of normal human conversation. Noise inside the car mainly comes from engine noise, road noise, tire noise, wind noise, resonance noise, and other sources: The vehicle's engine is one source of noise, which can be generated and transmitted through the front fender, hood, firewall, and exhaust pipe. Road noise is created when the vehicle is driven at high speed, as wind cuts in and forms noise, and the movement of the vehicle causes vibrations in the chassis. Additionally, sand and gravel hitting the chassis can also produce noise. Tire noise is generated by the friction between the tires and the road surface when the vehicle is driven at high speed. There is a significant difference in tire noise between asphalt and concrete roads. Wind noise occurs when the pressure of the oncoming wind exceeds the sealing resistance of the car doors and enters the vehicle during high-speed driving. The faster the driving speed, the greater the wind noise. Resonance noise and other sources. Hazards of car noise The impact of car noise on human health is multifaceted. Noise affects the central nervous system, disrupting the balance between excitation and inhibition in the cerebral cortex, leading to abnormal conditioned reflexes and damaging the tension of cerebral blood vessels. These physiological changes can be reversed in the early stages, but over time, they can lead to pathological changes, causing symptoms such as headaches, brain swelling, tinnitus, insomnia, memory decline, and general fatigue. If pregnant women are exposed to high levels of noise in vehicles for a long time, the noise can affect fetal development by acting on the central nervous system. Car noise not only increases fatigue for the driver and passengers but also affects driving safety. On the other hand, noise has serious adverse effects on the digestive and cardiovascular systems, leading to indigestion, loss of appetite, nausea, and vomiting, thereby increasing the incidence of stomach diseases and ulcers. It also significantly raises the incidence of hypertension, arteriosclerosis, and coronary heart disease compared to normal conditions. Noise also has adverse effects on the visual organs.

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What is the maximum wading depth of the Lexus ES?

According to official information, the maximum wading depth of the Lexus ES is 20 cm. Common tire specifications include 215/55R17 and 235/40R19, with body lengths of 4975mm and 4980mm. The car is equipped with an 8-speed automatic transmission or a CVT transmission, and the body structure is a 4-door, 5-seat sedan. The maximum wading depth refers to the deepest water a car can safely pass through. Generally, the maximum wading depth for sedans does not exceed 30 cm, while SUVs have a higher wading depth, though it is still best not to exceed 50 cm. Among common models, the GAC Trumpchi GS8 has a maximum wading depth of 30 cm, the Audi A4 has 32 cm, the Volkswagen Sagitar has 30 cm, the Land Rover Range Rover has 90 cm, the Jeep Compass has 48 cm, and the Highlander has 45 cm. The maximum wading depth of SUVs is significantly higher than that of sedans. Generally, when driving through water, vehicle owners should take different measures depending on the depth of the water and the vehicle's specifications, as follows: If the wading depth reaches the height of the exhaust pipe, it is relatively safe. Even if water enters the exhaust pipe, the pressure inside is sufficient to expel the water. As long as the engine is not turned off in the water, water will not flow back into the vehicle. If the wading depth reaches the height of the door frame, it becomes more dangerous. The vehicle's circuits, electronic components, and sensors are mostly concentrated at the bottom of the car, which could lead to short circuits, damaging critical electrical components and preventing the car from starting properly. If the wading depth reaches the height of the air intake, it is extremely dangerous. Driving directly into such conditions could cause the vehicle to stall immediately, leading to permanent engine damage or rendering the engine unusable.

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Where Should ETC Be Placed?

For small cars, the ETC device is generally installed in the upper-middle part of the front windshield. For large vehicles such as trucks and buses, the installation position is in the middle-lower part. The appropriate installation position should be no lower than 1.2 meters and no higher than 2.5 meters, with an installation angle between 30 to 90 degrees. If the vehicle has a sunshade film or if one is applied later, it may affect the signal transmission of the microwave communication link, and the device should be installed in the microwave sunroof strip. ETC stands for Electronic-Toll-Collection, meaning electronic toll collection system. To apply for ETC, the vehicle owner needs to provide a valid ID card and the original and photocopy of the vehicle registration certificate. If the application is not made by the owner, the agent must also provide a valid ID card. The photocopy of the vehicle registration certificate should include the page with the most recent annual inspection stamp. A bank card for deducting highway tolls is also required, and the vehicle must be registered under the name of an individual aged 18 to 60. Documents required for company vehicles: An introduction letter from the vehicle owner (with official seal); a copy of the organization code certificate or business license (with official seal); the original ID card of the agent; the original vehicle registration certificate; and the vehicle for which ETC is to be applied. Here are some precautions for installing ETC: Do not obstruct the view; it is best to install it behind the rearview mirror: Many car models have a large tilt angle of the windshield, which reduces the driver's field of vision. If this is not considered during ETC installation, it may increase the driver's blind spots. Installing it behind the rearview mirror on the right side can avoid obstructing the view. Do not interfere with charging: The ETC electronic tag consumes power but generally does not require charging or battery replacement because it has a solar panel on the back that can charge itself. Therefore, during installation, avoid the blackened areas of the windshield and positions that may block the solar panel. Do not remove it arbitrarily once installed: The button in the middle of the adhesive is an anti-removal lever connected to a switch. After the electronic tag is installed, the windshield will press the anti-removal lever in. If the tag is removed arbitrarily, the lever will pop out and trigger the switch, locking the electronic tag and rendering it unusable. In such cases, you will need to visit an ETC service point to unlock it. This mechanism is designed to prevent multiple vehicles from sharing one device. Things to note when using ETC: The ETC transaction sensing range is 8 meters. To prevent the ETC device of the vehicle in front from malfunctioning, maintain a distance of more than 10 meters from the vehicle ahead to avoid automatic toll payment for the front vehicle. The recognition speed for ETC lanes is 20 kilometers per hour. Driving too fast may result in failure to read the vehicle's device information, leading to toll deduction failure. When using a debit card linked to ETC, insufficient balance may also cause toll deduction failure.

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Why Can't a Car Spare Tire Be Used for a Long Time?

Is 93 gasoline the current 92 gasoline?

What is the fuel tank capacity of the 2017 Leiling in liters?

What is the difference between HB3 and 9005?

What is the normal level of noise inside a car on the highway?

What is the maximum wading depth of the Lexus ES?

Where Should ETC Be Placed?

What is the first maintenance mileage for the Tiguan L330?

What are the time requirements for the physical examination when renewing a driver's license?

Can Traffic Management 12123 Handle Vehicle Annual Inspection?

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