How to Choose the Right Engine Oil Grade for Your Vehicle?

At what level of wear should brake pads be replaced?

Brake pads need to be replaced when their remaining thickness reaches 3.5 millimeters. More information about brake pads is as follows: 1. Brake pads are one of the most important components of a vehicle's braking system. The pressure from the braking system is transmitted to the brake pads through the piston caliper, and the friction between the brake pads and the brake disc generates braking force to slow down or stop the vehicle. 2. Brake pads are also a consumable material on vehicles. Generally, the need for replacement is determined by measuring the actual thickness of the brake pads. 3. Brake pads consist of three parts: a steel plate, adhesive material, and friction material. The effective working part of the brake pad is the friction material layer. Once the friction material layer is worn out, the braking performance of the brake pads will significantly decline. Therefore, when the brake pads wear down to the adhesive layer, they need to be replaced. The thickness of the adhesive layer is approximately 3.5 millimeters, meaning brake pads should be replaced when their remaining thickness is 3.5 millimeters.

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What is an A3 driver's license?

A3 is a city bus driver's license, which requires a minimum passenger capacity of 10 people. Holders of an A3 license can also drive C1 - small cars, C2 - small automatic transmission cars, C3 - agricultural four-wheeled vehicles, and C4 - agricultural three-wheeled vehicles, but they cannot drive B1 - medium-sized buses or B2 - large trucks. More details about the A3 driver's license are as follows: 1. According to the 'Regulations on the Application and Use of Motor Vehicle Driver's Licenses,' the requirements for applying for an A3 license include: being between 20 and 50 years old, having a height of at least 1.55 meters, no motor dysfunction in limbs, uncorrected or corrected vision reaching at least 4.9 on the logarithmic visual acuity chart, no color blindness, and no criminal record. Applicants can directly apply or apply for an upgrade after holding any driver's license for at least one year. 2. Note: Many people might think that city buses and city coaches fall under the scope of an A3 license based on vehicle size and passenger capacity, but this is incorrect. City buses and city coaches are fundamentally different, and an A3 license only permits driving city buses, not city coaches.

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How many millimeters taller is a 65 tire compared to a 60 tire?

65 and 60 refer to the aspect ratio of the tire, which is the ratio of the height from the rim to the tread of the tire to the maximum width of the tire section. For a tire with a width of 200mm, a 65 tire has a height of 130mm, and a 60 tire has a height of 120mm, with a difference of 10mm between them. The main differences between 65 tires and 60 tires are as follows: 1. 65 tires have a narrower tread, resulting in a smaller contact area with the road surface, poorer adhesion, and relatively lower stability and safety, but they are more fuel-efficient. 2. 60 tires have a wider tread, resulting in a larger contact area with the road surface, better adhesion, improved vehicle stability, and higher safety, but they are less fuel-efficient.

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What does the M+- next to the D gear mean?

The M next to the D gear is the manual mode in an automatic transmission car. M+ means manually increasing the gear, and M- means manually decreasing the gear. After shifting into the M gear, the transmission gear needs to be controlled manually, but unlike a manual transmission, you don't need to press the clutch or release the accelerator when shifting gears. Overall, it is less likely to stall compared to a manual transmission. Here are some precautions for using the M gear: 1. When overtaking, use M- to lower the car's gear, increasing the torque and allowing the car to achieve greater acceleration in a short time, thus completing the overtaking maneuver faster. 2. When in manual mode, if you are unsure how many gears you have shifted up or down, you can check the dashboard, which will display the corresponding gear information.

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How to Align for Hill Start and Stop?

During the Subject 2 driving test, the method for aligning during hill start and stop is as follows: 1. After hearing the voice command to begin this test item, control the vehicle speed, turn on the right turn signal, and slowly steer towards the right roadside line. 2. When the right front corner of the engine hood (at 1/3 position) aligns with the roadside line, maintain straight steering while observing the entire vehicle's position relative to the line through the right rearview mirror to ensure the distance between the vehicle body and the roadside line is within 30cm. 3. When the raised point on the right wiper, the pole of the stop sign, and your eyes form a straight line (three-point alignment), depress the clutch and brake to stop. 4. Within 30 seconds after the voice prompt, complete the hill start by turning on the left turn signal, gradually releasing the clutch until the vehicle vibrates, then keeping the clutch steady while slowly releasing the brake with your right foot for a smooth start before exiting the test area.

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What to Do When Car Windows Are Invisible on Rainy Days?

Here are solutions for when car windows are invisible on rainy days: 1. When driving in the rain, fear of blurred rearview mirrors affecting visibility. If the blur is caused by fogging on the side windows due to temperature differences between inside and outside, adjusting the air conditioning temperature and direction for the driver and passenger seats can solve the issue. If the problem is external rainwater, some measures are needed. 2. On rainy days, evenly apply toothpaste or soap to the car's side windows, wait for the applied soap to harden, then wipe it off with a towel. This will form a wax layer on the glass surface, which has excellent water-repellent properties, effectively preventing fogging or water droplets on the rearview mirrors that cause blurred vision. Additionally, keeping soap in the car can also freshen the air and eliminate odors. 3. Purchase and use specialized water repellents. Water repellents on the market generally come in two forms: spray and wipe-on. Evenly spray or apply the water repellent to the rearview mirrors, and a protective film will form on the surface. This film also has excellent hydrophobic properties, effectively preventing fogging or water droplets on the rearview mirrors, ensuring clear visibility.

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How to Choose the Right Engine Oil Grade for Your Vehicle?

At what level of wear should brake pads be replaced?

What is an A3 driver's license?

How many millimeters taller is a 65 tire compared to a 60 tire?

What does the M+- next to the D gear mean?

How to Align for Hill Start and Stop?

What to Do When Car Windows Are Invisible on Rainy Days?

What Causes Brake Noise When Starting?

Does a Rusty Wheel Hub Axle Need to Be Treated?

How to Identify Whether a Car Air Conditioning Compressor is Good or Bad?

Can an Automatic Transmission Driver's License Deduct Points from a Manual Transmission License?