What are the reasons for the rapid consumption of coolant in the new Changan CS75?

What are the symptoms of an excessively lean air-fuel mixture in an engine?

The symptoms of an excessively lean air-fuel mixture in an engine are: 1. An excessively lean mixture will cause slow combustion of the air-fuel mixture during the power stroke, resulting in continued combustion during the exhaust stroke. The burning gases enter the exhaust pipe, causing it to glow red. 2. At idle, the engine load decreases, the throttle opening becomes smaller, and the intake air volume reduces. At this time, the intake manifold creates a vacuum due to the reduced throttle opening, and exhaust gases can be sucked back into the intake manifold during exhaust, further reducing the oxygen content in the intake manifold. 3. If the fuel injection is too rich at this point, it will cause a significant decrease in the air-fuel ratio, meaning the gasoline proportion is too high. As a result, oxygen becomes extremely scarce, leading to very low combustion efficiency and poor fuel economy. Additionally, it can cause carbon buildup in the cylinders and spark plugs, preventing them from functioning properly.

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How many kilometers does a normal car need to reach before being scrapped?

A private car will be guided to be scrapped by the state when it reaches 600,000 kilometers under normal driving conditions. Regulations on scrapping private cars: For household 5-seat sedans and 7-seat SUVs, as well as small and micro non-commercial vehicles, there is no usage lifespan limit. The state will guide their scrapping when they reach 600,000 kilometers under normal driving conditions. In addition to the above vehicles, small and micro non-commercial passenger cars, large non-commercial sedans, and wheeled special machinery vehicles also have no usage lifespan restrictions. Common regulations on scrapping commercial vehicles: Small and micro taxi passenger vehicles have a scrapping lifespan of 8 years, medium-sized taxi passenger vehicles 10 years, and large taxi passenger vehicles 12 years. Public bus passenger vehicles have a scrapping lifespan of 13 years, other small and micro commercial passenger vehicles 10 years, and large and medium commercial passenger vehicles 15 years. Micro commercial trucks have a scrapping lifespan of 8 years, while light and large commercial trucks have a scrapping lifespan of 10 years.

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Where to Add Water to a Car Engine?

Car water refill location is under the hood, on the left side of the engine. The specific steps are as follows: 1. Open the driver's side door of the car. 2. Pull the hood release lever located on the left side of the driver's leg area. 3. Lift up the car's engine hood. 4. Secure the engine hood with the support rod to ensure stability and prevent accidents during operation. 5. The water refill point is under the hood, on the left side of the engine. Fill up to the MAX mark. Additional information: 1. Generally, the radiator should be filled with antifreeze. Antifreeze has a low freezing point and prevents rust. Colder regions require antifreeze with even lower freezing points. Low-quality antifreeze tends to be highly concentrated and corrosive; it can be diluted with water at a 1:1 ratio. 2. The optimal replacement interval for antifreeze is every 2 years. If you notice a drop in the radiator's water level, immediately check for leaks.

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When Can You Get Your Driver's License After Passing Subject 4?

After passing Subject 4, you can get your license on the spot, usually within about 2 hours. Subject 4, also known as the Subject 4 theory test or driver's theory test, is part of the motor vehicle driver's license assessment. The main content includes: safety and civilized driving operation requirements, safe driving knowledge under adverse weather and complex road conditions, emergency handling methods for situations like tire blowouts, and post-accident handling knowledge. The Subject 4 test consists of 50 questions, mainly in the form of case studies, pictures, and animations, with a full score of 100 and a passing score of 90. After the implementation of the Ministry of Public Security's Order No. 123, the Subject 3 test was divided into two parts: in addition to the road test, a safety and civilized knowledge test was added, commonly known as "Subject 4," which assesses "driving ethics." Because this test is conducted after Subject 3, it is commonly referred to as the Subject 4 test. Officially, there is no Subject 4. Before the test, students can study traffic regulations through driver's mock test software on mobile devices or computers.

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What is the Difference Between Range-Extended Hybrid and Plug-in Hybrid?

Range-extended hybrid and plug-in hybrid differ in nature, power, and characteristics. Each has its own advantages and disadvantages. The specific details are as follows: Different in nature: A range-extended hybrid uses the power battery to drive the motor and propel the vehicle, with the engine only charging the power battery and not directly providing power. In contrast, a plug-in hybrid can directly use the engine for power when the vehicle's battery is low. Different in power: In a range-extended hybrid, when the battery is sufficiently charged, the power battery directly drives the motor to meet the vehicle's power demand, and the engine does not participate in operation. A plug-in hybrid relies on the power battery for propulsion when the battery is sufficiently charged, offering a longer pure electric range. When the battery is low, the engine starts and uses traditional engine power to continue driving. Different in characteristics: The disadvantage of non-plug-in hybrid vehicles is their very short pure electric range. In China, they are not classified as new energy vehicles, so they cannot enjoy new energy vehicle subsidy policies or obtain the exclusive green license plates for new energy vehicles. Since the engine in a range-extended hybrid can only be used for generating electricity, it never achieves optimal working efficiency, resulting in higher fuel consumption.

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What is the procedure for parking an automatic transmission car?

The correct method for parking an automatic transmission car is as follows: 1. Press the brake pedal to slow down and come to a complete stop. 2. After stopping, shift into N (Neutral) gear. 3. Engage the parking brake. 4. Release the foot brake and ensure the vehicle is stationary. 5. Press the foot brake again and shift into P (Park) gear. 6. Turn off the engine. The correct method for starting an automatic transmission car is as follows: 1. Connect the power source, then start the car. 2. After ignition, press the brake pedal, shift into D (Drive) gear, release the parking brake, and gently press the accelerator to start moving. 3. After starting, accelerate appropriately according to road conditions. Information about the various gears in an automatic transmission car is as follows: 1. P stands for Park, used when parking. 2. R stands for Reverse, used when reversing. 3. N stands for Neutral, used when starting the engine. 4. D stands for Drive, used when the car is moving forward. 5. L stands for Low, mostly used for climbing or descending hills. 6. S is similar to 2nd gear, shifting only between 1st and 2nd gears.

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What are the reasons for the rapid consumption of coolant in the new Changan CS75?

What are the symptoms of an excessively lean air-fuel mixture in an engine?

How many kilometers does a normal car need to reach before being scrapped?

Where to Add Water to a Car Engine?

When Can You Get Your Driver's License After Passing Subject 4?

What is the Difference Between Range-Extended Hybrid and Plug-in Hybrid?

What is the procedure for parking an automatic transmission car?

What do the letters on an automatic transmission stand for?

How often should the spark plugs of Volkswagen Tharu be replaced?

Which is better, AT or DCT transmission?

What are the gears of a fully automatic car?