Is it better to use 92-octane gasoline for the 12th-generation Crown?

What is the reason for unstable idle after replacing spark plugs?

The reason for unstable idle after replacing spark plugs is that the throttle is too dirty, causing inaccurate air intake. Spark plugs are mainly composed of a terminal nut, insulator, terminal stud, center electrode, side electrode, and shell. The main types of spark plugs are: standard spark plugs, projected insulator spark plugs, electrode spark plugs, seat spark plugs, pole spark plugs, and surface gap spark plugs. Spark plugs are installed on the side or top of the engine. In the early days, spark plugs were connected to the distributor via ignition cables. Over the past decade, most car engines have been modified to connect the ignition coil directly to the spark plug. Spark plug working principle: The spark plug's ground electrode is connected to the metal shell, which is screwed into the engine block via the cylinder head threads. The insulator mainly serves to isolate the metal shell and the center electrode. The terminal nut is the part of the spark plug that contacts the high-voltage coil. When current passes through the terminal nut and the center electrode, it breaks down the medium between the center electrode and the ground electrode to produce a spark, thereby igniting the air-fuel mixture in the cylinder.

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What is the wading depth of the Model Y?

The maximum wading depth is approximately 138mm. Here are the specific details: 1. Wading capability: It has mild wading ability, with the wading depth measured at the midline of the wheel rim. The high-voltage battery pack does not have a ventilation valve and has undergone precise testing before leaving the factory. The overall powertrain has good sealing, but this does not mean Tesla is an amphibious vehicle. Avoid driving through deep water areas. 2. Wading fault handling: Tesla can drive safely in heavy rain. When passing through dangerous wading depths, the high-voltage battery pack may malfunction when submerged. Whether it can completely prevent electric leakage remains to be examined. In case of a malfunction, contact after-sales rescue immediately and conduct a comprehensive inspection of the powertrain. 3. Wading advice: When passing through waterlogged areas, pay special attention to whether the water depth exceeds the midline of the wheel rim. Exceeding the midline indicates a dangerous area. If you cannot turn around or detour, maintain low gear and drive at a low speed. If any abnormality occurs during driving, go to a 4S shop for inspection immediately.

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Can a car that uses 92 octane gasoline also use 95 octane gasoline?

A car that uses 92 octane gasoline can also use 95 octane gasoline, but it is not recommended for long-term use. Engines with a compression ratio between 8.5 and 9.5 typically use 92 octane gasoline, while engines with a compression ratio greater than 9.5 usually use 95 octane gasoline. Occasional use once or twice will not have a significant impact. Differences between 92 and 95 octane gasoline: Compression ratio differences: Generally, cars with a compression ratio between 8.5 and 9.5 should use 92 octane gasoline, while cars with a compression ratio greater than 9.5 should use 95 octane gasoline. Octane rating differences: 92 octane gasoline has a lower octane rating than 95 octane gasoline. Specifically, 92 octane gasoline contains 92% isooctane, while 95 octane gasoline has an octane rating of 95%. Price differences: 92 octane gasoline is cheaper per unit than 95 octane gasoline. Gasoline grade selection: Common gasoline grades in China mainly include 92 octane and 95 octane. The gasoline grade indicates the octane rating of the gasoline, with higher octane ratings providing better anti-knock performance. Diesel grades are different from gasoline, as diesel grades represent the freezing point. Refueling precautions: Try not to wait until the fuel warning light comes on before refueling. The fuel pump is located inside the fuel tank and operates at a high temperature when continuously working. Being immersed in fuel helps to effectively cool it down. When the fuel warning light comes on, it means the fuel level is below the fuel pump. If you always wait for the light to come on before refueling, it will shorten the lifespan of the fuel pump. Additionally, having too little fuel or running out of fuel can potentially burn out the fuel pump. If the car has been driven over 30,000 kilometers, extra caution is needed. When the fuel level is too low, the fuel pump may draw in sediment from the bottom of the tank, which can block the fuel pump or obstruct the fuel line.

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Can Red Antifreeze Be Mixed with Different Brands?

Red antifreeze cannot be mixed with different brands. It is essential to use the same brand of antifreeze. Different brands of antifreeze may have varying production formulas, and mixing them can lead to chemical reactions between multiple additives, potentially rendering the additives ineffective. Methods for selecting antifreeze: The basic indicators of antifreeze are its freezing point and boiling point. The market offers antifreeze with freezing points such as -15°C, -25°C, -30°C, and -40°C. Generally, it is advisable to choose an antifreeze with a freezing point at least 10°C lower than the lowest temperature in your region. Methods to determine if antifreeze is low: Observe the antifreeze warning light on the dashboard. If it lights up, it likely indicates low antifreeze levels, though it could also be due to excessively high engine temperatures. Check the antifreeze reservoir. If the fluid level is below the minimum mark (MIN), do not continue driving; promptly add antifreeze. Inspect the water level scale on the antifreeze tank. Normal antifreeze levels should be between the maximum and minimum marks. If the antifreeze is below the minimum mark, it indicates a deficiency.

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What does motor vehicle inspection include?

Motor vehicle driver's license inspection includes the following: 1. Inspection content: Road traffic safety violations, accident handling status; physical condition; road traffic violation points and participation in study and testing after accumulating 12 points. Drivers whose licenses have been revoked must participate in no less than three hours of study on road traffic safety laws and regulations, safe and civilized driving, emergency handling, and receive case-based traffic accident warning education during inspection. 2. Failed inspection: Unresolved traffic violations or accidents, physical conditions not meeting driving license requirements, and failure to participate in required study, education, and testing will result in inspection failure.

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What are the types of engine oil?

Engine oil is divided into three categories: conventional mineral oil, semi-synthetic oil, and full synthetic oil. The following are the relevant introductions: 1. Mineral oil: Mineral oil is a commonly used lubricant in the market. It is derived from the residual base oil after the refining process of petroleum, where useful substances like gasoline and aviation oil are distilled out. Essentially, it utilizes the inferior components of crude oil. 2. Semi-synthetic oil: Semi-synthetic oil is produced using semi-synthetic base oil, which is purified from mineral oil through hydrocracking technology. It is a mixture of mineral oil and full synthetic oil in a ratio of 4:6. The purity of semi-synthetic oil is very close to that of full synthetic oil, but its cost is slightly higher than mineral oil, making it an ideal transitional product from mineral oil to synthetic oil. 3. Full synthetic oil: Full synthetic oil is the highest grade of engine oil. It is derived from ethylene and propylene dispersed from natural gas or gas in crude oil, which then undergoes complex chemical reactions such as polymerization and catalysis to form a lubricating fluid composed of large molecules.

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Is it better to use 92-octane gasoline for the 12th-generation Crown?

What is the reason for unstable idle after replacing spark plugs?

What is the wading depth of the Model Y?

Can a car that uses 92 octane gasoline also use 95 octane gasoline?

Can Red Antifreeze Be Mixed with Different Brands?

What does motor vehicle inspection include?

What are the types of engine oil?

Does Cutting the Rear Panel of a Car Count as a Major Accident?

What does the Subject Three Civility Knowledge Test cover?

How long will a flooded car take to develop problems?

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