How to View Driving Recordings on a Dash Cam?

Should I Use 5W30 or 5W40 in Winter

Oil grades W30 and W40 refer to the viscosity of the oil, with higher numbers indicating greater viscosity. In practical use, W30 oil has lower viscosity and better fluidity, while W40 oil is thicker and has relatively poorer fluidity. Therefore, in low winter temperatures, it is advisable to use W40-grade oil with better fluidity, which makes it easier to start the car. Relevant information about engine oil is as follows: 1. Introduction: Engine oil, also known as engine lubricant (English name: Engine-oil), has a density of approximately 0.91×10³ (kg/m³). It serves to lubricate and reduce friction, assist in cooling, seal against leaks, prevent rust and corrosion, and act as a shock absorber for the engine. It is often referred to as the 'blood' of the car. 2. Composition: Engine oil consists of base oil and additives. The base oil is the main component of the lubricant, determining its basic properties, while additives compensate for and improve the shortcomings of the base oil, imparting new characteristics, making them an essential part of the lubricant.

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How Long Does the First Maintenance Take to Complete?

Car first maintenance can generally be completed in about 1-2 hours, depending on the brand and model. The following are the key points to note for car first maintenance: 1. Pre-maintenance driving precautions: The initial period of driving a new car is called the break-in period. During this time, it is generally advised not to drive too fast, never exceed 100 mph, and keep the engine speed below 3000 rpm. A properly broken-in vehicle is less likely to encounter problems in the future and will also be more fuel-efficient! 2. Timing for new car first maintenance: It is usually set within the range of 5000 km/6 months or 10000 km/1 year. Owners should also keep track of the time, as if problems occur beyond this period, the 4S shop and manufacturer may not honor the warranty. 3. First maintenance appointment process: Owners need to make an appointment with the 4S shop in advance and fill in relevant information so that the service point can schedule the maintenance. They will remind you to bring your driver's license, vehicle registration certificate, purchase invoice, and first maintenance voucher when you come for the service. 4. First maintenance items: First maintenance usually includes changing the engine oil and oil filter, cleaning the air filter and cabin air filter, and performing a routine check of the vehicle's condition. It is advisable to decline any additional services recommended by the 4S shop.

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Can the Clutch and Accelerator Be Pressed Simultaneously?

The clutch and accelerator should not be pressed at the same time. The correct methods of operation include the following: 1. Release the accelerator first before pressing the clutch. 2. When shifting gears, first press the brake to slow down, then press the clutch to shift. 3. For stopping, you can directly press the clutch and brake. Correct coordination between the clutch and accelerator: 1. Starting: Press the clutch with your left foot and the brake with your right foot, engage first gear, release the handbrake, then slowly lift the clutch with your left foot. When the car begins to vibrate slightly, move your right foot to the accelerator pedal and gently apply some throttle while continuing to release the clutch. The car will start smoothly, and once the clutch is fully released with your left foot, apply throttle to prepare for shifting. 2. Upshifting: Release the accelerator pedal, quickly press the clutch pedal with your left foot, shift the gear lever to the appropriate gear, release the clutch pedal, and while releasing the clutch, slowly press the accelerator with your right foot. 3. Downshifting: First, press the brake to slow down, lightly tap the accelerator with your right foot, lift your right foot, quickly press the clutch pedal, shift the gear lever to the appropriate gear, release the clutch pedal, and while releasing the clutch, slowly press the accelerator with your right foot.

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How to Repair a Motorcycle Tubeless Tire?

Motorcycle tubeless tire repair methods are as follows: 1. First, you need a set of specialized tools for repairing tubeless tires: the price is not very expensive, and the two most important tools are a tapered file and an awl with a hole at the tip, along with specialized tire repair strips. 2. When repairing a tubeless tire: first locate the punctured area. If there are any foreign objects inside the tire, use pliers to remove them. Then, use the tapered file to roughen the area around the hole to create small fibers, ensuring the repair strip adheres tightly to the tire. 3. Next, take the prepared repair strip: thread it through the hole at the tip of the awl, align the two ends of the strip, and twist them together. Under the pulling force of the awl, slowly insert the repair strip into the hole of the motorcycle tubeless tire. The insertion depth should be about five centimeters, but ensure the length of the strip outside the tire is not less than one centimeter. 4. After pulling out the awl, there should be four strands of the repair strip inside the tire hole: this step is crucial for the success of the entire repair process. Once this step is completed, use a specialized tool to inflate the tire fully and check for any air leaks.

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How to Turn On the Car's Internal and External Air Circulation?

Regarding the usage of internal and external air circulation, the details are as follows: 1. The internal circulation symbol is: a circular arrow inside a car graphic, while the external circulation symbol is an arrow entering the car from outside. 2. Simply put: the car's internal circulation means the air inside the car is heated or cooled and then recirculated back into the car; external circulation means the air outside the car is heated or cooled and then brought into the car, allowing gas exchange between the inside and outside of the car. 3. Using external circulation: you can breathe fresh air from outside. When driving on the highway for a long time, the air inside the car may become stale, making you uncomfortable, and you can't open the windows. In this case, you should use external circulation to bring in fresh air. In winter, if the warm air feels too hot, you can turn off the fan and open the external circulation, which maintains the car's temperature while providing fresh air, making you feel more comfortable. 4. However, if you're using the air conditioning to lower the car's temperature: you should not turn on the external circulation. Instead, you can occasionally switch to external circulation to let in some fresh air. If you're in a traffic jam, you should turn on the internal circulation.

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What maintenance is needed for a car at 20,000 kilometers?

Maintenance at 20,000 kilometers is typically the third maintenance for a car, which is a major service. The routine items for the third car maintenance include the following: 1. Oil and oil filter replacement: Changing the oil and oil filter is essential. Under the harsh conditions of high temperature and high pressure inside the engine, the shelf life of oil is significantly shortened, and its performance greatly declines. Over time, it fails to protect the engine. The oil filter prevents impurities from mixing into the oil, which can cause oxidation, leading to the formation of sludge and clogging the oil passages. Both the oil and oil filter should be replaced simultaneously. 2. Air filter and cabin air filter: The air filter needs to be replaced at this stage. If it wasn't replaced during the 10,000-kilometer maintenance, it must be replaced at the 20,000-kilometer service. The air filter prevents dust and particles from being sucked into the engine during the intake process. If the filter is not cleaned regularly, it can lead to dust entering the engine, causing abnormal wear on the cylinder walls. 3. Spark plugs: If the car uses standard material spark plugs, preparations should be made to replace them at 20,000 kilometers. Spark plugs directly affect the engine's acceleration performance and fuel consumption. When you feel a lack of engine power while driving, maintenance should be performed. The lifespan of spark plugs varies depending on the material.

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How to View Driving Recordings on a Dash Cam?

Should I Use 5W30 or 5W40 in Winter

How Long Does the First Maintenance Take to Complete?

Can the Clutch and Accelerator Be Pressed Simultaneously?

How to Repair a Motorcycle Tubeless Tire?

How to Turn On the Car's Internal and External Air Circulation?

What maintenance is needed for a car at 20,000 kilometers?

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