How to Deal with Dents in Sheet Metal?

Is it better to use 92 or 95 octane gasoline for the VV7?

The Great Wall VV7 can use 92 octane gasoline. The definition of gasoline grades and an introduction to their anti-knock properties are as follows: Definition of gasoline grades: 92 octane gasoline contains 92% isooctane, with the remainder being n-heptane. Similarly, 95 octane gasoline contains 95% isooctane. There is no difference in quality between these two types of gasoline; they are simply suitable for engines with different compression ratios. Anti-knock properties of gasoline grades: Isooctane is related to anti-knock properties, while n-heptane affects the combustion speed. 92 octane gasoline has relatively weaker anti-knock properties, whereas 95 octane gasoline has higher anti-knock properties and a slower combustion speed. Differences between 95 and 92 octane gasoline: The main difference lies in the octane rating, with no other fundamental differences. 95 octane gasoline consists of 5% n-heptane and 95% isooctane, while 92 octane gasoline consists of 8% n-heptane and 92% isooctane. 95 octane gasoline has a higher octane rating than 92 octane gasoline. In terms of stability, 95 octane gasoline burns more easily and delivers greater power output compared to 92 octane gasoline.

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Can a car's license plate be changed?

In principle, it is not allowed to change the license plate. If there are special circumstances requiring a license plate change, you must apply for re-registration at the vehicle management office. Below is the procedure for handling the replacement of a license plate: Required documents: In addition to the vehicle's registration certificate and your ID card, you must bring the motor vehicle registration certificate if it has been processed. For company vehicles, the organization code certificate is also required. Vehicle Management Office: The owner first needs to fill out a license replacement application form at the vehicle management branch. For company vehicles, the form must be stamped with the company's official seal before submission. The vehicle management office will then provide a police receipt and a temporary license plate. The temporary license plate should be placed in a visible position on the vehicle's front windshield for inspection by traffic police. Using a temporary license plate does not affect the annual inspection. If only one license plate is lost, the old plate must be surrendered when applying for a replacement. Waiting: After 30 working days, you can collect the new license plate from the vehicle management office. The new license plate will have the same number as your original one, and your vehicle registration certificate can still be used.

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How to Read Brake Disc Size Data?

There is no need to look up brake disc sizes. If you want to replace your brake discs, simply measure the diameter of the discs after removing them. Below is relevant information about brake discs: Classification of Brake Discs: Brake discs come in many types, including carbon ceramic brake discs, slotted brake discs, slotted and drilled brake discs, double-layer cooling brake discs, and solid brake discs. Things to note when replacing brake discs: The sizes of front and rear brake discs differ, with front brake discs generally being larger than rear ones. When replacing brake discs, it is advisable to choose original equipment manufacturer (OEM) parts or those produced by reputable brands.

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What are the differences between Driving License Subject 1 and Subject 4?

The main differences between Subject 1 and Subject 4 include: the number of test questions, question types, proportion of exam content, and exam focus. The basis comes from the "Regulations on the Application and Use of Motor Vehicle Driving Licenses". Number of test questions: The most obvious difference between Subject 1 and Subject 4 is the number of test questions. Subject 1 has 100 questions, while Subject 4 only has 50 questions. In Subject 1, the test will automatically submit if more than 10 questions are answered incorrectly, while in Subject 4, the test will automatically submit if more than 6 questions are answered incorrectly. Question types: Subject 1 consists of 100 questions, each worth 1 point, with a total test time of 45 minutes. The question types are true/false and single-choice questions, with a full score of 100. Subject 4 consists of 50 questions, each worth 2 points, with a test time of 45 minutes. The questions are mainly in the form of case studies, pictures, animations, etc., and the question types include true/false, single-choice, and multiple-choice questions, with a full score of 100. Exam content focus: Subject 1 mainly assesses basic knowledge of road driving, while Subject 4 focuses on safe and civilized driving knowledge. It can be understood this way: Subject 1 tests how to drive, while Subject 4 tests how to drive safely. Although the difference is just two words (safety), the focus is completely different. Proportion of exam content: Subject 1 exam content composition: Driving license and motor vehicle management regulations account for 20%; Road traffic conditions and regulations account for 25%; Road traffic safety violations and penalties account for 25%; Road traffic accident handling regulations account for 10%; Basic knowledge of motor vehicles accounts for 10%; Local regulations account for 10%. Subject 4 exam content composition: Safe driving knowledge accounts for 20%; Civilized driving knowledge accounts for 18%; Comprehensive application of road traffic signals in traffic scenarios accounts for 8%; Safe driving knowledge under adverse weather and complex road conditions accounts for 16%; Emergency avoidance knowledge accounts for 12%; Typical accident case analysis accounts for 6%; Traffic accident rescue and common hazardous chemical disposal knowledge accounts for 10%; Local test questions account for 10%. There is no limit to the number of attempts for driving test Subject 1 and Subject 4. If the test is failed, it can be rescheduled. Each scheduled test has two attempts. If both attempts are failed, the test can only be retaken until it is passed. Both Subject 1 and Subject 4 are theoretical tests and are part of the motor vehicle driving license assessment. There are a total of 3 subjects in the driving test: Subject 1, Subject 2, and Subject 3. Subject 1 refers to the road traffic safety laws, regulations, and related knowledge test; Subject 2 refers to the field driving skills test; Subject 3 is divided into two parts: road driving skills and safe and civilized driving knowledge test. The safe and civilized driving knowledge test is conducted after Subject 3, so it is commonly referred to as Subject 4. In the official terminology (i.e., the Ministry of Public Security Order No. 123), there is no such term as Subject 4.

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How Often Should a Vehicle License Be Inspected?

Here is the relevant information about how often a vehicle license should be inspected: Operational Passenger Vehicles: Operational passenger vehicles must be inspected once a year within the first 5 years; after 5 years, they must be inspected every 6 months. Medium and Large Vehicles: Trucks and large or medium non-operational passenger vehicles must be inspected once a year within the first 10 years; after 10 years, they must be inspected every 6 months. Small Vehicles: Small and micro non-operational passenger vehicles must be inspected once every 2 years within the first 6 years; after 6 years, they must be inspected once a year; after 15 years, they must be inspected every 6 months.

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How to Solve Blackened Spark Plugs?

The solution for blackened spark plugs is to clean them promptly or replace them directly. Steps for replacing spark plugs: Open the engine hood, lift the plastic cover of the engine, remove the high-voltage distributor wires, and mark the position of each cylinder to avoid confusion. Use a spark plug socket to remove the spark plugs one by one. While removing, check for any external debris like leaves or dust and ensure they are thoroughly cleaned. Place the new spark plug into the spark plug hole, hand-tighten it a few turns, and then use the socket to tighten it further. Reinstall the removed high-voltage distributor wires according to the firing order, and then secure the cover. Spark plug replacement interval: Under normal maintenance conditions, replace them after driving 40,000 to 60,000 kilometers. However, this may vary depending on the brand and engine type. It is recommended to follow the user manual. The following standards can be referenced for maintenance replacement: Platinum spark plugs should be replaced at 40,000 kilometers, ordinary nickel alloy spark plugs at 20,000 kilometers, and iridium spark plugs at 60,000 to 80,000 kilometers.

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How to Deal with Dents in Sheet Metal?

Is it better to use 92 or 95 octane gasoline for the VV7?

Can a car's license plate be changed?

How to Read Brake Disc Size Data?

What are the differences between Driving License Subject 1 and Subject 4?

How Often Should a Vehicle License Be Inspected?

How to Solve Blackened Spark Plugs?

What to Do When There Are Water Droplets Inside the Headlights?

What is Brake Fluid?

At What Age Can You Get a B2 Driver's License?

What does it mean when the ABS light on the dashboard is on?