What gear should an automatic car be in when going downhill?

Will traffic police check if the wheel size is increased by one inch?

Increasing the wheel size by one inch will not be checked by traffic police, but it will not pass the annual inspection. Changing to a one-inch larger wheel cannot be registered and will also fail the annual inspection. Below are the relevant regulations for vehicle modifications: To modify a motor vehicle: Modifications must be carried out within the scope specified by the traffic management department, such as modifying the body color, engine, fuel type, or frame number. After submitting an application, the driver must obtain approval from the traffic management department before proceeding with the modifications. Unauthorized changes are prohibited: No unit or individual may assemble a motor vehicle or modify the registered structure, construction, or characteristics of a motor vehicle without authorization. Modification actions: Any unauthorized modifications to the chassis, engine, suspension, transmission system, steering system, tires and wheels, lights, body color painting, or exterior structure of a motor vehicle without permission from the public security traffic management department, as well as any technical data of the motor vehicle that does not match the data announced by the State Council's motor vehicle product authority, are considered modification actions.

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Is 3.0 bar tire pressure normal?

Tire pressure of 3.0 bar is not normal. For many vehicles, 3.0 bar is a very high value. According to the provisions and requirements of the international GBT2978-2008 standard, the recommended tire pressures for different types of tires are as follows: standard tires should be 2.4-2.5 bar; reinforced tires should be 2.8-2.9 bar; while the maximum pressure should not exceed 3.5 bar. The hazards of excessive tire pressure include: reduced tire friction and adhesion, affecting braking performance; causing steering wheel vibration and deviation, reducing driving comfort; accelerating wear on the central tread pattern, shortening tire lifespan; increased vehicle vibration, indirectly affecting the lifespan of other components; excessive tension on tire cords, reducing tire elasticity and increasing the load on the vehicle during driving; decreased resistance to punctures.

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Can an 80-year-old obtain a driver's license?

It is possible to obtain a motor vehicle driver's license, but there are restrictions on the types of licenses available. Eligible categories include small cars, small automatic transmission cars, small automatic transmission passenger cars for the disabled, and light motorcycles. Before applying, applicants must undergo a physical condition examination for motor vehicle drivers and pass it to be eligible for the test. Important notes: Individuals aged 70 or above are not permitted to drive low-speed trucks, three-wheeled vehicles, ordinary three-wheeled motorcycles, ordinary two-wheeled motorcycles, or wheeled self-propelled machinery. Motor vehicle drivers aged 70 or above must undergo an annual physical examination and submit a health certificate issued by a medical institution at or above the county level within 30 days after the end of each scoring cycle.

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What is the function of the MLC hole in a car?

The "MLC" hole on a car's onboard unit is a simple sound source (speaker) installed inside the unit, primarily used to provide keypress tones during operation or error operation prompts. It is also sometimes used as a Bluetooth voice sound source, which is more common in older models. Nowadays, Bluetooth phone audio can typically be routed to the car's audio system speakers, making it more convenient and clearer for safe driving. Additional information: The "Res" hole on a car's onboard unit is mainly used for recovery or restart purposes, such as when the unit "freezes" during operation; when a "serious error" occurs due to operational mistakes or internal machine issues; as a "special" button during certain onboard unit upgrades; or as a button to restore initial settings when the machine becomes slow due to prolonged use, high memory usage, etc.: releasing memory, restarting, etc.; some special design requirements for certain functions.

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What lights should be turned on when driving in foggy conditions for Subject 3?

When driving at night without street lights, under poor illumination, or encountering conditions of reduced visibility such as fog, rain, snow, dust, or hail, motor vehicles should turn on the headlights, position lights, and rear position lights. However, high beams should not be used when following another vehicle closely in the same direction. In foggy conditions, motor vehicles should turn on the fog lights and hazard warning flashers. Additional information: Lighting usage for Subject 3: Turn on the headlights when driving at night without street lights or under poor illumination; use low beams when following another vehicle closely at night; use low beams when meeting non-motorized vehicles on narrow roads or bridges at night; use low beams when meeting other motor vehicles at night; switch from headlights to position lights + hazard warning flashers when a vehicle breaks down or is involved in a traffic accident at night, obstructing traffic and making it difficult to move; use fog lights + hazard warning flashers + headlights when driving in foggy conditions; alternately use high and low beams when passing sharp curves, arched bridges, slopes, crosswalks, or intersections without traffic signal control at night.

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Is a fuel consumption of 10 liters per 100 km normal for a new car?

Normal. Factors affecting fuel consumption are as follows: Engine: This is an inherent indicator affecting fuel consumption. From the oldest carburetor to today's direct injection systems, various brands are striving to improve the fuel economy of engines. Purely from a technical perspective, direct injection is an excellent technology that significantly improves fuel combustion efficiency, but it places higher demands on the engine's fuel supply system and cylinder materials. Transmission: Here, the transmission refers to automatic transmissions. The engine and transmission form the simplest power output system, so the structure of the transmission also directly affects fuel consumption. Driving habits: This is an acquired indicator affecting fuel consumption and the most significant factor influencing it. The same car will have different fuel consumption under different road conditions, and whether the air conditioning is used or even when it is turned on can affect fuel consumption.

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What gear should an automatic car be in when going downhill?

Will traffic police check if the wheel size is increased by one inch?

Is 3.0 bar tire pressure normal?

Can an 80-year-old obtain a driver's license?

What is the function of the MLC hole in a car?

What lights should be turned on when driving in foggy conditions for Subject 3?

Is a fuel consumption of 10 liters per 100 km normal for a new car?

What are the penalty rules for gear shifting in Subject 3?

Do electric cars require a driver's license?

What are the symptoms of a turbocharger burning oil?

What is a letour car?