What are the functions and roles of the Oil Manager?

What Causes Steering Wheel Vibration at Speeds Above 130km/h?

Tire dynamic imbalance, significant differences in tire pressure among the four tires, and poor four-wheel alignment can cause steering wheel vibration at speeds above 130km/h. Tire Dynamic Imbalance: If a tire experiences a strong impact in a localized area during driving, it can cause the balance weights to fall off or become damaged, thereby affecting the tire's dynamic balance. Significant Differences in Tire Pressure Among the Four Tires: When there is a large difference in tire pressure among the four tires, especially between the left and right wheels, the car will experience noticeable body jolts and steering wheel vibration during high-speed driving. Poor Four-Wheel Alignment: When the four-wheel alignment has significant deviation angles, the car may exhibit body drift and vibration during high-speed driving. This can also lead to uneven tire wear, accelerating tire wear and shortening the tire's lifespan. Solutions for Steering Wheel Vibration at Speeds Above 130km/h: When steering wheel vibration occurs at high speeds, the first step is to check and adjust the tire pressure. Next, perform a dynamic balance check on all four wheels, and finally, conduct a four-wheel alignment.

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Should the Air Conditioning Be Set to Internal or External Circulation During Long-Term Parking?

Keeping the air conditioning on internal circulation during long-term parking will gradually lead to polluted air inside the vehicle, increasing harmful gases and posing risks to human health. It is advisable to periodically switch to external circulation or leave a small gap in the window to allow fresh air in. Continuous use of internal circulation can result in carbon dioxide poisoning. The choice between internal and external circulation should be adjusted based on actual conditions. Use external circulation on highways: First, due to wind resistance and high speeds, opening windows is not advisable on highways. Prolonged use of internal circulation can cause brain hypoxia, impairing reaction time and judgment, which is highly dangerous. Second, the air quality on highways is generally good, with low concentrations of exhaust fumes, making external circulation a suitable choice. In urban areas, during congested traffic or peak commuting hours when vehicle exhaust concentrations are high, it is best to switch to internal circulation. New cars typically contain high concentrations of toxic gases like formaldehyde. For the first three to six months after purchasing a new car, it is recommended to use external circulation along with opening windows to enhance air circulation and dilute the concentration of toxic gases inside the vehicle.

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Do Cars Need Car Covers?

Car covers are necessary as they primarily serve to protect the car's paint and windows from direct sunlight exposure. They also provide protection against rain, snow, and falling leaves, while helping to keep the car clean. Precautions for Using Car Covers: It is best to use a car cover when the vehicle is stationary and the temperature has cooled down after washing. The cover should be of the right size to fit the car perfectly to ensure it functions as intended. Be sure to wash the cover if it gets dirty before the next use; otherwise, it may have the opposite effect, allowing dirt to stick to the car. How to Secure a Car Cover: Evenly spread the cover from the front to the rear of the car. First, secure the ear positions on both sides of the cover to prevent it from slipping. Then, fit the cover tightly over the front and rear of the car. After covering, pass the windproof strap under the cover from one side of the car to the other. Then, on the opposite side of the car, fasten the buckle. Finally, thread the steel cable through the metal ring and pass it to the other side, then lock the ring and cable with an anti-theft lock.

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What is the size of the photo for a driver's license?

Driver's license photos must be one-inch white background photos. According to the regulations on the application and use of motor vehicle driver's licenses, the size and color of the photos have been clearly specified. The requirements include a front-facing, single-person, half-body ID photo of the applicant taken within the last six months, with a white background and clear visibility of the person. Nowadays, driver's license photos can be retouched, but the degree of retouching should not be excessive. According to the regulations, the image should be clear, with rich layers, natural facial expressions, and no obvious distortion or stretching. Photos that meet these requirements can be used. When applying for a motor vehicle driver's license, six photos need to be submitted. According to the motor vehicle driver's license file management, the resolution of the photos should be 300dpi. However, requirements may vary slightly by region. Specific requirements should be based on local policies, and photos can be taken directly at the driving school during registration. Holders of A1, A2, A3, B1, or B2 driver's licenses must report to the traffic management department of the public security authority within thirty days after the end of each scoring cycle for verification. However, if there are no demerit points recorded during a scoring cycle, the verification for that cycle is exempted.

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What Causes Brake Disc Noise While Driving?

The causes of brake disc noise while driving include normal ABS activation, rust on brake pads/discs, excessive wear of brake discs and pads, and installation issues. Below are detailed explanations for each cause: The ABS operation process is actually a cycle of locking, releasing, locking, and releasing, keeping the vehicle in a state of near-lock rolling. Therefore, when ABS is activated by sudden braking, noise is normal, and pressing the brake pedal fully can resolve it. After prolonged parking, especially in humid weather or after rain, some rust or dirt may form on the brake discs or pads. Driving for a while can solve this, or applying butter or specialized lubricant at the connection between the brake pads and calipers may help. Both brake discs and pads are high-wear components. Every time you brake, these two parts experience friction, leading to wear over time. Excessive wear naturally causes noise, so regular inspection and replacement are necessary. Typically, brake pads should be replaced every 60,000-80,000 km, while brake discs last 100,000-120,000 km. Incorrect installation or mismatched models of brake pads can also cause noise. Reinstalling the brake pads may resolve this. Owners should have brake pads installed at professional auto repair shops, especially those who have had them replaced at roadside stalls, as extra caution is needed.

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Where to Check the Mileage of a Car?

Car mileage can be viewed on the odometer, usually indicated by ODO, with the unit km following the numerical value, representing the total distance the car has traveled. Its function is to inform the driver of the distance covered, allowing for fuel cost calculations and indirectly reflecting the car's fuel efficiency. The car odometer also includes two LCD digital display windows connected to the same signal source, respectively accumulating the current trip mileage and the total mileage. The current trip mileage typically has four digits and can be reset for short-term counting, while the total mileage has six digits and cannot be reset. Generally, there are two types of car mileage: one is the total mileage the vehicle has traveled, and the other is the measurable mileage. The measurable mileage can be manually reset by the owner, usually with a small button (cylindrical) next to the number; pressing and holding it will reset the value. ODO is the abbreviation of the English word 'odograph,' representing the total mileage. TRIP stands for short-distance mileage, also known as the trip mileage, which is convenient for users to calculate the distance of each trip. The trip mileage can be reset by pressing and holding the clear button. It can also be used to calculate fuel consumption. The method to calculate the fuel consumption per 100 kilometers is to fill up the tank, reset TRIPA or TRIPB, drive 100 kilometers, and then fill up the tank again. The amount of fuel added represents the fuel consumption per 100 kilometers.

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What are the functions and roles of the Oil Manager?

What Causes Steering Wheel Vibration at Speeds Above 130km/h?

Should the Air Conditioning Be Set to Internal or External Circulation During Long-Term Parking?

Do Cars Need Car Covers?

What is the size of the photo for a driver's license?

What Causes Brake Disc Noise While Driving?

Where to Check the Mileage of a Car?

How many points are deducted for driving improperly on the highway?

What Causes the Brake to Pull to the Left?

Can Brake Fluid Still Be Replaced After 100,000 Kilometers Without Replacement?

Does a Car Key Need to Be Charged?