How many kilometers should engine oil be changed?

Does idling with AC on in summer damage the car?

It does not cause any special damage to the car, only normal wear and tear. Below are the impacts of idling with AC on: 1. Increased emission of harmful gases: Idling with AC on emits more harmful exhaust gases compared to driving with AC on, because idling is the most unfavorable operating condition for the engine, where gasoline combustion is relatively incomplete, resulting in higher emissions of carbon monoxide, hydrocarbons, nitrogen oxides, and other harmful gases. 2. Significant harm to human health: Idling with AC on can cause harm or even death to occupants if not careful. There are mainly two types of harm: one is hypoxia and suffocation, and the other is carbon monoxide poisoning. When idling with AC on, it must be done in an open area. Never stay in the car for a long time in a confined small space, as the carbon monoxide emitted by the car can enter the vehicle, easily leading to carbon monoxide poisoning.

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How to Remove Hardened Cement Slurry from a Car?

Methods for removing cement from a car are as follows: 1. If within 12 hours: First wet and soak the area with water, then use car wash soap and a towel to gently clean it. 2. If over 12 hours: By this time, the cement has likely hardened. You can purchase some acidic solution from a pharmacy, dip a brush in it, and apply it to the cement. The acidic liquid will dissolve the cement, which can then be rinsed off with water. 3. Using gasoline: Pour gasoline onto the cement, wait for it to soften slightly, and then manually remove the cement (suitable for large areas). 4. Using a hair dryer: Heat the cement-covered area with a hair dryer. Due to the different thermal expansion rates of cement and plastic, the cement will usually fall off automatically. 5. Using white vinegar: Spray white vinegar onto the cement with a spray bottle, wait for 3-5 minutes, and then gently scrape it off with a hard card. The cement will come off in chunks. Afterwards, wash the area thoroughly with car wash soap to ensure no residue remains.

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What are the main functions of a transmission?

The main functions of a transmission are as follows: 1. Change the transmission ratio; 2. Expand the torque and speed of the driving wheels; 3. Enable the vehicle to move in reverse; 4. Facilitate gear shifting or power output. The maintenance methods for a transmission include: 1. Regularly change the transmission oil; 2. Frequently check the oil level; 3. Avoid coasting in neutral; 4. Clean the transmission periodically; 5. Avoid forcibly disengaging gears; 6. Reduce the time spent idling to warm up the vehicle. The components of a manual transmission include: input shaft, output shaft, differential, gear sets for each gear, bearings, synchronizer, shift mechanism, shift fork, oil seal, lubricating oil, housing, and output flange.

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Can You Still Drive with Tire Pressure at 150?

Tire pressure at 150 cannot continue driving. Here is the extended information: 1. Car tire pressure: Car tire pressure is a crucial data point that affects driving safety. Generally, as long as the tire pressure of a sedan is between 2.3 to 2.8 bar, the tires are safe. When the tire pressure is too low, it may indicate a puncture or even a flat tire. It is recommended to find an opportunity to stop slowly, place a warning sign 150 meters away from oncoming traffic, and call the police or the insurance company for assistance. 2. Standard air pressure: Determined based on the number of passengers in the car. Open the fuel tank cap of the car, where there is a label displaying the standard tire pressure. The car's engine is located at the front, resulting in a greater load-bearing weight, so the front tire pressure is higher than the rear tire pressure. The main source of car tire pressure comes from the friction between the tires and the ground during driving.

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How Often Should a New Car Be Inspected?

New car annual inspections are divided into two scenarios: one qualifies for a 6-year exemption, while the other requires on-site testing. Relevant details are as follows: 1. On-site testing: The 6-year exemption does not mean complete exemption in the true sense, but rather exempts the on-site testing (i.e., vehicle inspection) process. However, it is still necessary to apply for an annual inspection compliance sticker every two years, which can be done online. It's important to understand this distinction clearly—it's equivalent to enjoying two exemptions from on-site testing, but the sixth year still requires on-site annual inspection and application for the compliance sticker. 2. Exemption: Annual inspection consists of two parts. The first part involves going to an inspection station for vehicle checks (lights, tires, emissions, etc.), while the second part is essentially receiving the annual inspection sticker, with the prerequisite being passing the first part. In this sense, the exemption simply skips the first part and goes directly to the second part.

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What to Do If You Don't Drive Your Car Often?

If a car remains unused for an extended period, its battery will gradually lose charge and may be completely depleted within 4-6 months. If possible, have family members periodically charge the car battery, starting the vehicle every 1-2 weeks and letting it run for 5-10 minutes. Relevant information about car batteries is as follows: 1. Introduction: A car battery, also known as a storage battery, is a type of battery that works by converting chemical energy into electrical energy. Typically, the term "battery" refers to a lead-acid battery, which is mainly composed of lead and its oxides, with a sulfuric acid solution serving as the electrolyte. 2. Working Principle: It uses lead plates filled with sponge-like lead as the negative electrode, lead plates filled with lead dioxide as the positive electrode, and a 22-28% dilute sulfuric acid solution as the electrolyte. During charging, electrical energy is converted into chemical energy, while during discharging, chemical energy is converted back into electrical energy.

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How many kilometers should engine oil be changed?

Does idling with AC on in summer damage the car?

How to Remove Hardened Cement Slurry from a Car?

What are the main functions of a transmission?

Can You Still Drive with Tire Pressure at 150?

How Often Should a New Car Be Inspected?

What to Do If You Don't Drive Your Car Often?

Where is the car oxygen sensor located?

What is the content of Subject 4 in the driving test?

What are the reasons for the engine sounding louder than before?

Is It Normal to See Smoke When Opening the Oil Cap?