What does Subject 3 of the driving test include?

How Often Should a Sedan Be Started in Winter?

It is best not to leave a vehicle parked for extended periods, as this can easily lead to battery discharge. Under normal circumstances, it is advisable to start the car every five working days during winter. For those who frequently travel on business and are away for several months at a time, returning only for a few days before leaving again, failing to properly maintain the car in such situations can cause significant damage. Engine oil is a crucial component in car maintenance, and for cars left unused for long periods, the oil is prone to deterioration. More details are as follows: 1. Deteriorated engine oil produces various substances, including acidic compounds, which can have adverse effects. Using such oil can harm the engine, leading to corrosion and other issues. Therefore, it is recommended that those who do not drive their cars for extended periods change the oil before the first use. Engine oil is not like water; over time, its impact on the car can be substantial. 2. Car tires can also be affected. This issue is generally well-known. If a car is left unused for a long time, the weight of the vehicle continuously presses on the tire pressure, which can cause the tires to deform over time. Once the tires are deformed, repairing them becomes virtually impossible, and the only solution is to replace them.

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What brand is V-Power?

V-Power is a Shell fuel. More information about V-Power is as follows: 1. Shell V-Power performance fuel is the first premium fuel developed by Shell for ordinary consumers. It was first launched in 1998 and has been sold in over 80 countries and regions worldwide. In many parts of the world, it is synonymous with premium fuel. 2. Shell formulated gasoline: Through unique cleaning factors, it helps prevent carbon deposit buildup, keeping the engine clean, thereby providing stronger power for your car. 3. Shell formulated diesel: It can effectively reduce foam, protect the system from corrosion, improve fuel efficiency, and effectively reduce vehicle operation and maintenance costs.

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What are the reasons for the key not turning?

The reasons why the car key cannot be turned are as follows: 1. Issues with the vehicle's fuel and electrical circuits, requiring inspection of the vehicle's wiring and fuel lines. 2. Problems with the vehicle's electrical circuit. 3. Activation of the steering wheel's automatic locking function, which is an anti-theft feature designed to enhance vehicle security. Here are the solutions for steering wheel lock: 1. To unlock the steering wheel, first insert the mechanical key, press the vehicle's brake pedal, then rotate the steering wheel. Although the steering wheel is locked, it can still be slightly rotated. 2. While turning the steering wheel, simultaneously turn the key to complete the steering wheel unlocking procedure. At this point, the vehicle can be started normally.

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How to Identify China 6 Emission Standard?

China 6 emission standard is denoted by the symbol Ⅵ. There are two methods to identify it: 1. Check the vehicle conformity certificate: The vehicle conformity certificate can only be viewed after taking delivery of the car. 2. Check environmental protection information: (1) First, locate the vehicle nameplate near the B-pillar on the co-driver's side, which records basic vehicle information. Note down two important pieces of information from the nameplate: the complete vehicle model number and the engine model number. Then search online by opening the 'Motor Vehicle Environmental Protection Information Disclosure Website' and input the engine model number to search, finding the corresponding complete vehicle model number. (2) Once the model numbers match, you can view detailed information, where the emission standard will be indicated in the information column.

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What does the A button in a car mean?

The 'A' on a car stands for the auto-hold function of the vehicle. Vehicles equipped with an electronic parking brake usually come with the auto-hold function, which is not enabled by default and requires the driver to manually activate it. Once the auto-hold function is activated, it eliminates the need for frequent operation of the handbrake or electronic parking brake, and for automatic transmission models, it avoids the frequent switching between D to N and D to P. More details are as follows: 1. When the vehicle brakes during driving and comes to a complete stop, even if the brake pedal is released, the vehicle may not continue to move. It will only proceed forward when the accelerator pedal is pressed again. 2. The English name for auto-hold is AUTO-HOLD, and this button is typically located next to the electronic parking brake.

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What material is the three-way catalytic converter made of?

The material of the three-way catalytic converter is aluminum oxide (Al2O3), and the outer shell is made of stainless steel. Its working principle is that when high-temperature automobile exhaust passes through the purification device, the purifying agent in the three-way catalytic converter enhances the activity of three gases (CO, HC, and NOx), carrying out certain oxidation-reduction chemical reactions to convert them into harmless gases. The reasons that cause the three-way catalytic converter to fail include: 1. Prolonged idling; 2. Delayed ignition timing; 3. Overly rich air-fuel mixture; 4. Engine burning oil; 5. Failure of the oxygen sensor; 6. Overheating due to incomplete cooling; 7. Cutting off the switch while the vehicle is in motion.

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What does Subject 3 of the driving test include?

How Often Should a Sedan Be Started in Winter?

What brand is V-Power?

What are the reasons for the key not turning?

How to Identify China 6 Emission Standard?

What does the A button in a car mean?

What material is the three-way catalytic converter made of?

What are the causes of low cylinder pressure?

Can Tires Last for 6 Years?

How to Solve the Flickering Issue of the Rearview Camera?

How to Steer the Wheel for Reversing in Subject 2?