How to adjust the audio equalizer of BYD Song?

What is the Difference Between Gasoline Grades?

Gasoline grades differ in the following aspects: 1. Different octane numbers. The higher the gasoline grade, the higher the octane number. 2. Different anti-knock properties. The higher the gasoline grade, the better the anti-knock performance. 3. Different uses. The higher the gasoline grade, the higher the anti-knock coefficient of the gasoline, and the corresponding requirements for the compression ratio of the car are also different. The higher the engine compression ratio, the higher the required anti-knock coefficient of the gasoline. Relevant information is as follows: 1. The gasoline grade is the ratio of the actual anti-knock performance of gasoline to that of standard gasoline. Standard gasoline is composed of isooctane and n-heptane. 2. The primary criterion for selecting a gasoline grade for a car is the engine's compression ratio, which is also a core energy-saving indicator of modern cars. Increasing the compression ratio only changes the piston stroke. The more the air-fuel mixture is compressed, the greater the reaction force of combustion, and the more complete the combustion.

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Do I Need to Pay Purchase Tax When Buying a Used Car?

If the original owner has paid the purchase tax, then the used car you buy does not need to pay it again. If the purchase tax was not paid when the car was new, then after the used car transaction, the new owner of the car needs to pay the remaining purchase tax. Relevant information is as follows: 1. The purchase tax for a car only needs to be paid once, usually when the car is new, but the original owner must provide a complete proof of purchase tax payment. With the tax payment proof, you do not need to pay the purchase tax when buying a used car. 2. If the purchase tax payment certificate is lost, it can be resolved by the original owner applying for a replacement. If it is a tax-exempt vehicle, the vehicle purchase tax must be paid in accordance with the relevant provisions of the national 'Interim Regulations on Vehicle Purchase Tax'.

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What is the difference between h4 and h7 bulbs?

Here are the differences between h4 and h7 bulbs: 1. H4 and H7 are two different types of bulbs with different functions and structures. H4 is generally used for high and low beams, while H7 is typically used for low beams. 2. H4 has three terminals and features dual filaments for high and low beams, whereas H7 has two terminals. 3. H7 has a wider illumination range but shorter distance, making it less noticeable for stationary dark-colored objects on the road. H4 combines both low and high beams in a single bulb, serving dual purposes. Here is some related information: 1. Car headlights, also known as car front lights or LED daytime running lights, act as the eyes of the car. They not only affect the external image of the car owner but are also crucial for safe driving at night or in bad weather conditions. 2. Car bulbs are essential for ensuring driving safety at night. Poor lighting conditions can easily cause eye fatigue and fail to provide adequate brightness and illumination range for the driver. High-quality car bulbs can offer higher brightness and better visibility, enhancing driving comfort and safety, ensuring confident driving.

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What to Do If You Drive Without Carrying Your Driver's License?

When driving without carrying your driver's license, you can hand over your ID card to the traffic police for verification to check if you have a valid driver's license. The following are the procedures for driving without a license: 1. In regions with strict law enforcement, driving without a license may result in a symbolic deduction of 1-2 points and a fine of 50 yuan. In some cases, the vehicle may even be impounded for safety reasons until you bring the required documents to retrieve it. 2. In regions with less strict law enforcement, you usually only need to provide valid identification or your ID number to verify your eligibility to drive. A verbal warning may be given for forgetting to bring your license. Even if you are fined or penalized for not carrying your license, avoid arguing or shouting at the traffic police, as this could be considered disrupting public order or obstructing law enforcement. If you believe the penalty or point deduction is unjust, you can note the officer's badge number and file a complaint afterward or request an administrative review to overturn the penalty.

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What Causes Steering Wheel Vibration When Car Speed Exceeds 120 km/h?

The reasons for steering wheel vibration when car speed exceeds 120 km/h are as follows: 1. It is caused by the force feedback generated after the tires come into contact with the ground; 2. A series of issues with the car itself, such as inward or outward tilting of the wheels, foreign objects on the tire surface, falling off of wheel balance weights, deformation of the wheel hub, excessive clearance of the steering linkage, insufficient tire pressure, etc. The specific problems with car tires are divided into the following points: 1. Uneven tire pressure among the four wheels (especially the front two wheels). 2. Uneven tread wear among the four wheels (one-sided tire wear). 3. The rims of the four wheels are not perfectly round (steel or aluminum rims deformed into an oval shape). 4. No alignment correction was performed after replacing the four wheels' tires. 5. A foreign object punctured one of the tires and formed a bulge on the tread, which is not noticeable at low speeds (absorbed by the suspension system), but once driving at high speeds, the resulting frequency vibration becomes very obvious.

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What does the Subject 3 test include?

Subject 3 consists of 16 specific items as follows: vehicle preparation, starting, driving straight, gear shifting operations, changing lanes, going straight through intersections, crossing pedestrian crossings, passing bus stops, passing school zones, turning left at intersections, turning right at intersections, meeting oncoming vehicles, overtaking, making U-turns, pulling over, and night driving. The following are precautions for the Subject 3 test: 1. If a candidate fails the fingerprint verification, they must exit the vehicle to re-register their fingerprint before rejoining the queue for the test. 2. If a candidate's score falls below the passing threshold during the test, the system will automatically prompt them to pull over. Once the pulling over maneuver is completed, the system will indicate the next test. 3. After completing all required test items and driving a distance exceeding 3 kilometers, the system will automatically prompt the candidate to pull over. Upon hearing the instruction, the candidate should choose a clear curb (or solid road edge line) along the test route and safely complete the pulling over maneuver. The system will then announce the test results. 4. When walking around the vehicle to inspect its exterior and surroundings, maintain a distance within 1 meter from the vehicle body to ensure the accuracy of radar signal detection.

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How to adjust the audio equalizer of BYD Song?

What is the Difference Between Gasoline Grades?

Do I Need to Pay Purchase Tax When Buying a Used Car?

What is the difference between h4 and h7 bulbs?

What to Do If You Drive Without Carrying Your Driver's License?

What Causes Steering Wheel Vibration When Car Speed Exceeds 120 km/h?

What does the Subject 3 test include?

What are the precautions for cleaning the car throttle?

How Often Should the Fuel Filter in a Car Be Replaced?

What to Do When Car Windows Get Blurry on Rainy Days?

What is the normal tire pressure for a sedan?