What Do the Numbers on Tires Mean?

How to Identify the Front and Back of a Tire?

Tire identification methods for front and back are as follows: 1. "OUTSIDE" and "INSIDE" markings: Generally, the sidewall of the tire will have "OUTSIDE" (outer) and "INSIDE" (inner) markings indicating the front and back. When installing the tire, simply ensure the side marked "OUTSIDE" faces outward and the side marked "INSIDE" faces inward. 2. Arrow markings: Some tires may have rotation direction arrows on the sidewall. For such tires, installation should not only follow the rotation direction indicated by the arrow but also ensure the side with the arrow faces outward. 3. Production date and other information: For convenience, the side with the tire production date, size specifications, and other information is usually placed outward, while the side with no or minimal markings faces inward.

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What Does the Six-Year Exemption from Inspection Mean?

Six-year exemption from inspection is a system that allows vehicles to be exempt from inspection at the vehicle management office for six years. Below is the relevant introduction to vehicle annual inspection: 1. Initial inspection: The inspection conducted for motor vehicles to apply for a license plate is called the initial inspection. The purpose of the initial inspection is to verify whether the motor vehicle meets the conditions for applying for a driving license. 2. Definition: According to national regulations, motor vehicles must regularly pass inspections including exhaust emissions, vehicle appearance, lights, brakes, chassis, etc., and obtain an inspection compliance mark provided there are no traffic violation records. All annual inspection dates are based on the registration date on the vehicle's license. Motor vehicles must undergo safety technical inspections according to the following periods from the date of registration, commonly referred to as 'annual inspection' or 'annual review'.

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What Vehicles Can Be Driven Without a License?

Non-motorized vehicles do not require a driver's license, such as bicycles and electric bikes. Here is relevant information: 1. Non-motorized vehicles: "Non-motorized vehicles" refer to means of transportation powered by human or animal force, as well as those with power-driven devices but designed with maximum speed, unladen weight, and dimensions meeting national standards, such as motorized wheelchairs for the disabled. This includes trailers, cargo handcarts, and animal-drawn vehicles. 2. Regulations on cargo loading for non-motorized vehicles: For bicycles and motorized wheelchairs for the disabled, the height of cargo must not exceed 1.5 meters from the ground, the width must not extend more than 0.15 meters beyond the handlebars on either side, the front length must not exceed the front wheel, and the rear length must not exceed the body by more than 0.3 meters. For tricycles and human-powered vehicles, the height must not exceed 2 meters from the ground, the width must not extend more than 0.2 meters beyond the body on either side, and the length must not exceed the body by more than 1 meter.

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Is it okay not to tint the rear windshield?

You can choose not to tint it based on personal preference. Here is relevant information: 1. Functions of window tinting: Its main functions are blocking ultraviolet rays, reducing heat transmission, preventing injuries caused by glass shattering, reducing glare, and protecting personal privacy through the one-way visibility feature of solar films. Additionally, it can minimize damage to interior items and occupants from UV exposure, lower the car's interior temperature through physical reflection, reduce the use of air conditioning, thereby decreasing fuel consumption and saving costs. 2. Principle: Through vacuum deposition or magnetron sputtering technology, metals such as aluminum, gold, copper, and silver are used to create multiple layers of highly insulating metal films. The outer shell electrons (free electrons) in metallic materials are generally not bound by the atomic nucleus. When exposed to light waves, the electric field of the light causes the free electrons to absorb the light's energy and oscillate at the same frequency as the light. This oscillation then emits light of the same frequency as the original light, known as light reflection.

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What is the fuel consumption of the Focus 1.8 automatic transmission?

Average fuel consumption per 100 kilometers: 9.1 liters. Generally, the fuel consumption of a 1.5L engine sedan should be around 6-8 liters/100km. When driving on highways at a speed of around 90km/h, the fuel consumption is approximately 6.5L/100km; the combined fuel consumption for urban and suburban road driving is around 7.5 liters. Methods to reduce fuel consumption are as follows: Control the optimal RPM: While driving, fuel-injected cars generally achieve the most fuel efficiency at an engine RPM of around 2200-2500. Regardless of the gear, maintain the engine RPM at around 2200-2500. Too low RPM will make the car sluggish, consume fuel without moving, and damage the engine; too high RPM increases unnecessary fuel consumption and also harms the engine. Maintain the optimal speed: The most fuel-efficient driving condition is steady, straight-line driving. The most fuel-efficient speed for small-displacement cars is 60-80 km/h, while for medium-displacement cars, it is 80-100 km/h.

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What are the reasons why the engine won't start?

The reasons why the engine won't start are as follows: 1. First, it may be an electrical or electronic fault. The phenomenon that occurs is very sudden, without any warning. Electrical faults include: blown fuse, open circuit in the high-voltage coil, open circuit in the low-voltage circuit, detached central ignition wire, leaking distributor rotor, or damaged spark plug. 2. Then, it could be a fuel system fault. Engine stalling caused by fuel system faults often comes with symptoms like weak engine power and the accelerator pedal feeling like stepping on cotton. Possible fuel system fault locations include: fuel pump failure, blocked fuel line, clogged fuel filter, carburetor failure, or damaged injector, etc. Sometimes, the fuel tank may be empty without the owner realizing it. 3. It could also be a mechanical fault. Common mechanical faults include: timing belt (chain) breakage, cylinder leakage with no pressure, etc. The second scenario is when the starter motor doesn't work or barely works. In this case, the first thing to check is the battery. 4. Ignition system failure. Besides the battery, other reasons for the starter motor not working could be a damaged ignition switch, faulty ignition relay, or a damaged starter motor itself. Additionally, check the grounding circuit and fuses. The ignition system provides high-voltage electricity to the spark plugs to ensure the car runs properly. Ignition system failure can also lead to the car not starting. Poor connections in the low-voltage circuit or leaking high-voltage wires can cause ignition system failure. 5. Severe engine carbon buildup. Severe carbon buildup in the car's engine can prevent the car from starting. Many impurities in gasoline, poor fuel quality, or poor sealing of the valve seat can cause carbon buildup. Regularly clean engine carbon deposits and use higher-quality gasoline. 6. Starter motor aging. An aging car starter motor can also cause weak starting or failure to start the car. Therefore, replace the starter motor periodically and avoid using it for too long.

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What Do the Numbers on Tires Mean?

How to Identify the Front and Back of a Tire?

What Does the Six-Year Exemption from Inspection Mean?

What Vehicles Can Be Driven Without a License?

Is it okay not to tint the rear windshield?

What is the fuel consumption of the Focus 1.8 automatic transmission?

What are the reasons why the engine won't start?

What Causes the Brake Pump of an Electric Vehicle Not to Rebound?

What Causes the Warning Light to Illuminate?

Does Uneven Tire Pressure Have an Impact?

How to Identify a Used Car?