What do sport and comf mean?

What does 0W20 engine oil mean?

0W20 engine oil means it has the best low-temperature fluidity but relatively average high-temperature performance, indicating the oil is relatively thin. The letter W in the engine oil grade stands for Winter. The number before the W indicates the oil's viscosity at low temperatures. The smaller the number, the better the low-temperature fluidity of the oil. The number after the W represents the kinematic viscosity standard at 100 degrees Celsius, affecting the oil's adhesion performance at high temperatures. Here is some related information about automotive engine oil: 1. Automotive engine oil grades: S at the beginning represents gasoline engine oil, followed by letters from A, B, C, D, to N. The higher the letter, the higher the grade. Currently, the market typically offers grades above SG, including SG, SJ, SL, SM, and SN. Vehicles with low engine technology, such as microcars or older models like the Jetta, can use SG-grade oil. SL offers the best anti-wear performance, while SM/SN usually includes special formulations for environmental considerations. 2. Classification of automotive engine oil: Automotive engine oil is specifically classified into 4 types for summer use, 6 types for winter use, and 16 types for all-season use. Summer oils are labeled 20, 30, 40, and 50, with higher numbers indicating higher viscosity and suitability for higher temperatures. Winter oils are labeled 0W, 5W, 10W, 15W, 20W, and 25W, where W stands for Winter. The smaller the number before W, the lower the low-temperature viscosity and the better the low-temperature fluidity, making it suitable for lower temperatures. All-season oils are labeled 5W-20, 5W-30, 5W-40, 5W-50, 10W-20, 10W-30, 10W-40, 10W-50, 15W-20, 15W-30, 15W-40, 15W-50, 20W-20, 20W-30, 20W-40, and 20W-50. The smaller the number representing the winter part, and the larger the number representing the summer part, the higher the viscosity and the wider the applicable temperature range.

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How many points are deducted for stopping 30-50 cm beyond the line in the uphill parking test (Subject 2)?

Stopping 30-50 cm beyond the line in the uphill parking test (Subject 2) results in a 10-point deduction. Below are details about partial deductions for the uphill parking test: 1. Scoring criteria: If the vehicle's front bumper (for cars) or front axle (for motorcycles) fails to stop on the pole line and exceeds 50 cm in either direction, it results in failure. If the vehicle stops within 50 cm of the pole line without exceeding it, a 10-point deduction is applied (previously 20 points). 2. Key points: Accurately estimate the target by using reference points such as the parking pole and a specific spot on the windshield or hood (this varies by vehicle model and driver height and should be determined during practice). When the reference point aligns with the parking pole in a straight line, indicating the bumper is aligned with the pole line, stop immediately.

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Can You Wear a Hat While Practicing Driving?

You can wear a hat, but it is not recommended. Wearing a hat reduces the amount of light reaching your eyes, making it harder to see objects ahead clearly, which can increase the risk of traffic accidents. Here are some precautions for driving: 1. Choose appropriate sun protection tools. Generally, it's best not to wear a hat while driving. If you encounter intense sunlight, you can use the sun visor properly or wear high-quality sunglasses. 2. Choose suitable clothing. Avoid clothes that are too tight or excessively loose, as they can directly affect the flexibility of the driver's movements. It's best to wear moderately loose clothing while driving. 3. Choose appropriate footwear. High heels, slippers, or snow boots can interfere with the driver's control of the accelerator and brake pedals. Therefore, it's best to wear sneakers or canvas shoes while driving.

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How far can you drive when the fuel light comes on?

When the fuel light comes on, the car can generally drive about 50 kilometers. The following is an introduction to the knowledge about car warning lights: 1. Engine fault light: Yellow light - indicates that a fault has occurred, but the vehicle can continue to drive. Please go to the repair shop for inspection and repair as soon as possible. Red light - indicates that a fault has occurred. Please stop immediately and call for rescue. At this time, the vehicle cannot continue to drive to avoid danger. 2. Oil warning light: If the oil warning light comes on, it means that the vehicle must have lost a large amount of oil. In order to avoid excessive damage to the engine, please add the same type of oil as soon as possible.

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What to Do When the Outside of Car Windows Fogs Up?

Here are the solutions for fogging on the outside of car windows: 1. Open windows for air circulation: If the fog inside the car is not heavy, you can open the windows slightly to allow air exchange between the inside and outside of the car. This reduces the temperature difference and gradually eliminates the fog. This method works similarly to using the air conditioner to blow cold air but without increasing fuel consumption. However, the downside of opening windows is obvious—it’s not suitable during rain, snow, on highways, or when the fog is heavy. Additionally, it lowers the temperature inside the car. 2. Use the air conditioning system: For most car owners, using the air conditioning system to defog is the most common method. Almost all cars have air vents located under the front windshield. Simply adjust the air conditioning to the appropriate setting to use the airflow to clear the fog. But should you use cold or warm air? Both have their pros and cons. If you’re in a hurry, cold air can serve as an emergency solution. However, warm air is generally recommended for most situations. 3. Anti-fog products: In many markets and auto parts stores, there are stalls selling specialized anti-fog products, such as anti-fog sprays or fog-resistant towels. Spraying these products onto the inner surface of the car window and wiping them clean not only removes dirt but also forms a thin, transparent protective film on the glass. This film prevents water vapor from condensing into fog on the glass. One application can last for about ten days to half a month.

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What is the maximum length of a B2 heavy-duty truck?

B2 driver's license is for large trucks with a maximum length of 9.6 meters. Trucks can be classified by load capacity and length: 1. Mini: Total weight ≤1.8 tons, length ≤3.5 meters; 2. Light: 1.8 tons < total weight ≤6 tons, length <6 meters; 3. Medium: 6 tons < total weight ≤14 tons, length <6 meters; 4. Heavy: Total weight ≥14 tons, length >6 meters. Here is relevant information about B2 driver's license: 1. Permitted vehicle types: B2 license allows driving heavy and medium-duty trucks or large, heavy, and medium-sized specialized operation vehicles. Heavy and medium-duty trucks are mainly trucks, such as the large trucks commonly seen on the road carrying construction waste, which belong to heavy-duty trucks. Large, heavy, and medium-sized specialized operation vehicles refer to vehicles equipped with special devices or equipment, such as water sprinklers, concrete mixers, fire trucks, etc. 2. Application requirements: (1) Age between 21 and 50; (2) Height ≥150 cm; (3) Naked or corrected vision of both eyes must reach 5.0 or above on the logarithmic visual acuity chart; (4) No red-green color blindness; (5) Able to distinguish the direction of sound source with each ear 50 cm away from the tuning fork; (6) Both thumbs must be intact, and each hand must have at least three other fingers intact, with normal limb and finger movement functions; (7) Both lower limbs must be intact with normal movement functions, and the length difference must not exceed 5 cm; (8) No movement dysfunction in the trunk or neck.

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What do sport and comf mean?

What does 0W20 engine oil mean?

How many points are deducted for stopping 30-50 cm beyond the line in the uphill parking test (Subject 2)?

Can You Wear a Hat While Practicing Driving?

How far can you drive when the fuel light comes on?

What to Do When the Outside of Car Windows Fogs Up?

What is the maximum length of a B2 heavy-duty truck?

Must the yellow dot on the tire be aligned with the valve stem?

What are the test items for the C1 driver's license subject three exam?

How to Quickly Solve Overheating Radiator?

What does engine boosting mean?