What are the causes and solutions for engine overheating in summer?

What is the purpose of the vertical line on the rearview mirror?

It is mainly used to observe the situation at a relatively far position on the side of the vehicle. Inside the dotted line, the curvature radius is larger, which is used to observe the situation at a relatively close position on the side of the vehicle. The combination of these two curvatures can minimize blind spots in the rearview mirror. Functions of the rearview mirror: The basic function is to expand the driver's field of vision, reduce blind spots, and enhance driving safety. When turning, getting out of the car, or reversing, it is essential to carefully check the rearview mirror. Not looking at the rearview mirror is an extremely dangerous driving behavior. Methods for adjusting the rearview mirror: Adjust the seat and posture to choose a comfortable driving position; adjust the rearview mirror according to the driver's posture, ensuring that the rear door handle is positioned in the middle of the mirror; adjust the internal rearview mirror of the car to ensure that the horizon is centered in the mirror while driving.

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What are the dimensions of a new energy vehicle license plate?

New energy vehicle license plates measure 480mm × 140mm. New Energy Vehicles: New energy vehicles refer to automobiles that utilize unconventional vehicle fuels as their power source (or use conventional vehicle fuels with new types of onboard power devices), integrating advanced technologies in vehicle power control and driving systems to form vehicles with advanced technical principles, new technologies, and innovative structures. Types of New Energy Vehicles: Hybrid Electric Vehicles (HEV), Battery Electric Vehicles (BEV, including solar-powered vehicles), Fuel Cell Electric Vehicles (FCEV), and other new energy vehicles (such as those using supercapacitors, flywheels, and other high-efficiency energy storage devices). Unconventional vehicle fuels refer to fuels other than gasoline and diesel.

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Do New Energy Vehicles Require Engine Oil and Coolant?

New energy vehicles do not require engine oil but do need coolant. The heat generated during battery charging and discharging requires cooling, and the battery needs heating in low temperatures to ensure performance. How to Choose Coolant: The basic indicators of coolant are freezing point and boiling point. Market-available coolants come in specifications like -15°C, -25°C, -30°C, and -40°C freezing points. Generally, select one that is at least 10°C lower than the lowest temperature in your region. How to Determine if Coolant is Low: Observe the coolant warning light on the dashboard. If it lights up, it likely indicates low coolant, though it could also be due to excessively high cylinder temperature. Check the coolant reservoir. If the level is below the minimum mark (MIN), do not continue driving and promptly add coolant. Inspect the water level scale on the coolant tank. Normal coolant levels should be between the maximum and minimum marks. To check if coolant is low, refer to the scale. If it's below the minimum mark, coolant is insufficient.

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What are the differences between the first, second, and third gears of a car?

The first, second, and third gears of a car differ in terms of speed, function, and driving conditions. The following are the distinctions between these three gears: 1. Different gear speeds: First gear is used for starting, with speeds under 20 km/h; second gear is used between 20-40 km/h; while third gear can be used between 40 to 60 km/h. 2. Different functions: When starting in first gear, it should be done as slowly as possible. First gear is generally used only when starting or turning. Third gear, at 2500-3500 RPM, provides engine torque suitable for overtaking or climbing steep slopes, but at this point, fuel consumption increases and engine noise becomes louder. Second gear, at 2000-2500 RPM, is more fuel-efficient (with slight variations depending on the engine), with moderate engine torque and relatively lower noise, making it suitable for normal driving. 3. Different driving conditions: First gear is the starting gear, used when the car begins to move. Its gear ratio is similar to that of the reverse gear, with basically the same performance, so it is not suitable for prolonged high-speed operation. Generally, once the car starts moving and gains momentum, you can shift to second gear. Second gear is the passing gear, mainly used for navigating complex road surfaces and handling complicated situations. Third gear is the transitional gear, primarily used for low-speed driving in urban areas. Depending on the situation, you can easily shift up to fourth gear for acceleration or down to second gear for deceleration.

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How long is the validity period for a driver's license after adding a motorcycle endorsement?

The validity period for adding a motorcycle endorsement to a driver's license is calculated from the date of the original license issuance, with renewal required every six years based on the initial application date for a motor vehicle driver's license. License renewal and inspection must meet the following conditions: Holders of licenses for large buses, tractors, city buses, medium-sized buses, or large trucks must have no demerit points in the current scoring cycle, or holders of licenses for other vehicle types must have fewer than 12 demerit points in the current scoring cycle; Holders of licenses for large buses, tractors, city buses, medium-sized buses, or large trucks who have demerit points in a scoring cycle, as well as holders of licenses for other vehicle types who have been involved in a traffic accident resulting in death and bear equal or greater responsibility but have not had their license revoked, must have completed the required inspection education; The applicant must have no pending road traffic safety violations or unresolved traffic accidents; The applicant's physical condition must meet the requirements for driving eligibility; The motor vehicle driver's license must not be under any legal seizure, detention, suspension, revocation, cancellation, or annulment.

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What is the purpose of motorcycle wheel weights?

Based on the balance of each wheel hub, the amount of wheel weights applied varies. The purpose of adding wheel weights is to ensure that the hub maintains balance without shaking or vibrating during rotation. The principle of wheel weights: To minimize the mass difference of the wheel, achieving a relatively balanced state. Wheel weights are counterbalance components installed on the wheels of a vehicle. Their function is to maintain dynamic balance when the wheels rotate at high speeds. Below are the roles of wheel weights: They maintain dynamic balance of the wheels at high speeds. To prevent phenomena such as vehicle shaking or steering wheel vibration during driving, wheel weights are added to ensure stable vehicle operation; they ensure tire balance, helping to extend the lifespan of the wheel tires and the normal performance of the vehicle; they reduce wear caused by tire imbalance during vehicle movement; they minimize unnecessary wear on the vehicle's suspension system.

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What are the causes and solutions for engine overheating in summer?

What is the purpose of the vertical line on the rearview mirror?

What are the dimensions of a new energy vehicle license plate?

Do New Energy Vehicles Require Engine Oil and Coolant?

What are the differences between the first, second, and third gears of a car?

How long is the validity period for a driver's license after adding a motorcycle endorsement?

What is the purpose of motorcycle wheel weights?

Does replacing LED bulbs affect vehicle registration?

What is it called when modified car tires are slanted?

Why is the rearview mirror heating not working?

What Causes Excessive Vibration in a Motorcycle Engine?