How many kilometers can a car still run when the fuel gauge reaches the red line?

Will points be deducted for forgetting to use the turn signal when turning?

Failure to use the turn signal or incorrect use of the turn signal will result in a deduction of 10 points each time. The specific regulations are as follows: Not using or incorrectly using the turn signal before starting, turning, changing lanes, overtaking, or parking will result in a deduction of 10 points. Turning the steering wheel less than 3 seconds after activating the turn signal before starting, turning, changing lanes, overtaking, or parking will result in a deduction of 10 points. There are a total of 6 situations in Subject 2 where the turn signal must be used: When starting the vehicle, activate the left turn signal; When starting on a slope, activate the left turn signal; When parallel parking, activate the right turn signal as the vehicle passes the parking spot and stops 30 cm from the curb before preparing to reverse; Before shifting into reverse gear during parallel parking, activate the left turn signal because the steering wheel will be turned fully to the right during reversing, causing the front of the car to shift left; Before exiting the parking space during parallel parking, shift into drive and activate the left turn signal, then turn it off promptly after exiting; When entering the area for a right-angle turn, activate the left turn signal and turn it off promptly after completing the turn. Subject 2 has a maximum score of 100 points, with evaluation criteria for failing, deducting 20 points, deducting 10 points, or deducting 5 points. The test is passed if the following conditions are met: ① For large passenger vehicles, tractors, city buses, medium-sized passenger vehicles, and large trucks, a score of 90 or above is required; ② For other vehicle types, a score of 80 or above is required. The test items for small vehicles C1 and C2 include reversing into a parking space, parallel parking, stopping and starting on a slope (canceled for C2), right-angle turns, and driving through curves (commonly known as S-turns) (some regions also include a sixth item: highway toll card collection). The test items for large vehicles A1, A2, A3, B1, and B2 include pole tests, stopping and starting on a slope, parallel parking, driving over a single-plank bridge, driving through curves, right-angle turns, passing through a width-restricted gate, driving over continuous obstacles, driving on bumpy roads, making U-turns on narrow roads, as well as simulated highway driving, continuous sharp turns on mountain roads, tunnels, rainy (foggy) conditions, slippery roads, and emergency handling.

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Does Transmission Oil Leak Count as a Major Overhaul?

Transmission oil leak counts as a major overhaul. The warning signs of transmission failure are as follows: 1. Transmission oil leak: You can clearly feel the car struggling to start, and although the engine speed increases when you press the accelerator during driving, there is no obvious sense of acceleration. The culprit may be an oil leak. Oil leakage can lead to insufficient lubrication inside the transmission, causing the transmission to malfunction. This situation is relatively simple and can be resolved by replacing the transmission oil. 2. Transmission jerking: The symptoms include noticeable jerking and shaking during gear shifting while driving. The cause may be due to excessively high transmission oil temperature, the presence of stubborn dirt and impurities inside, or blockages in the valve body, leading to transmission jerking. Please visit a 4S store or repair shop for inspection and repair.

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How long should a sedan be preheated?

Sedans only need about one minute of preheating. The reason for preheating is: After the car has been parked for a long time, the engine oil flows back to the oil pan at the bottom of the engine. When starting, the upper part of the engine lacks oil and lubrication. The purpose of preheating is to raise the temperature of the engine oil and improve its lubrication effect. The functions of preheating are: 1. Heating the antifreeze to improve the car's starting speed; 2. Maintaining the temperature of the engine block when the car is not in use, especially in low temperatures; 3. Preheating the engine oil to ensure it remains fluid for immediate circulation throughout the engine upon starting.

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How many hours can you sleep without opening the car window?

It is not safe to sleep in a car with the windows closed, as it can be fatal in severe cases. Here are the relevant details: 1. Hazards: If you sleep in the car for an extended period with the windows tightly shut and the air conditioning on recirculation mode, the confined space of the car will cause the oxygen inside to deplete due to human respiration, while the carbon dioxide exhaled will accumulate. When the carbon dioxide concentration reaches a certain level, it can lead to unconsciousness and brain hypoxia, with severe cases potentially resulting in death. 2. Avoid sleeping in a car with the heater on: When the engine is running, incomplete combustion of fuel can produce high concentrations of carbon monoxide. If the car is stationary with the heater on and the windows closed, the carbon monoxide emitted by the engine will accumulate inside the vehicle, gradually increasing in concentration and making it highly likely for occupants to suffer from carbon monoxide poisoning.

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What does 2.75-18 tire mean?

In the 2.75-18 tire, "2.75" refers to the tire width of 2.75 inches, which is 69.85mm, and "18" refers to the inner diameter of the tire or the outer diameter of the rim, which is 18 inches, or 457.2mm. The 2.75-18 tire is a standard tire, where the preceding numbers represent different attributes. For example, a 90/90-18 is a low-profile tire, where the first 90 indicates the tire width in millimeters, the second 90 represents the aspect ratio, and 18 again refers to the inner diameter of the tire or the outer diameter of the rim. This is expressed using the metric system. Tire model markings often appear as: 215/70R15, where the numbers mean: 215 is the tire section width in mm (typically ranging from 145–285mm in 10mm increments), 70 is the aspect ratio (the ratio of tire sidewall height to tire section width, with 70 representing 70%). Generally, tire aspect ratios range between 30% and 80%. For daily tire maintenance, pay attention to the following points: Regularly inspect the tire surface for cracks, deformations, or other defects. Due to driving wear, the tread grooves gradually become shallower. If the tread is worn flat, it loses its water drainage and anti-slip functions, significantly reducing the vehicle's performance. Small cracks may also pose a risk of blowouts at high speeds. Additionally, promptly remove pebbles stuck in the grooves. Park on level ground whenever possible. Avoid parking on roads with thick, sharp, or pointed stones. Do not park near or in contact with petroleum products, acids, or other materials that may degrade rubber. After parking, avoid turning the steering wheel, as this accelerates tire wear. Do not splash water to cool overheated tires. In hot weather or during high-speed driving, tires can overheat, increasing air pressure. In such cases, stop to allow the tires to cool naturally. Never release air to reduce pressure or splash water to cool the tires, as this may cause abnormal aging of the tread rubber. Avoid sudden braking. Minimize frequent or hard braking to prevent accelerated tread wear due to dragging against the road surface.

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Does Washing the Car After Waxing Have Any Impact?

Washing the car after waxing has no negative impact. You can wash the car when it gets dirty or after rain. However, it's important to inform the detailing shop when the wax was applied, as only regular water is needed for washing after waxing. Applying solid wax protects the car's paint, preventing marks from rain or chemical substances like bird droppings. Below is additional information: 1. The role of waxing: As a traditional aspect of car care, waxing primarily serves to waterproof and protect against acid rain. The wax reduces water droplet adhesion on the car's surface significantly, with effectiveness ranging from 50% to 90%. It also protects against high temperatures and UV rays. With increasing heat, cars exposed to sunlight for extended periods are prone to paint aging and fading. 2. Car polishing: Polishing is a step in the car detailing process, performed before waxing, sealing, or coating to achieve a mirror-like finish. Sealing or coating requires thorough polishing first. Without polishing, the paint surface remains uneven, significantly shortening the duration of the sealant's effectiveness and preventing long-term adhesion.

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How many kilometers can a car still run when the fuel gauge reaches the red line?

Will points be deducted for forgetting to use the turn signal when turning?

Does Transmission Oil Leak Count as a Major Overhaul?

How long should a sedan be preheated?

How many hours can you sleep without opening the car window?

What does 2.75-18 tire mean?

Does Washing the Car After Waxing Have Any Impact?

What are the Five Major Assemblies of Scrapped Vehicles?

Does Blackened Transmission Fluid Need Replacement?

Should You Release the Clutch or the Brake First When Starting on a Slope?

Why can't the rear door of the BMW X1 be opened from the inside?