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What Are the Reasons for the Decrease in Tire Pressure of New Cars?

1 Answers
MacCorey
07/29/25 10:33am
Reasons for the decrease in tire pressure of new cars: 1. The car has been parked for too long, causing the tire pressure to drop. When the car leaves the factory, the tire pressure is actually closer to the upper limit of the safe range, but as the car remains parked for an extended period, the tire pressure will change; 2. Some manufacturers intentionally lower the tire pressure to prevent excessively high speeds. Since it's a new car, even experienced drivers need an adaptation period. During this period, to prevent traffic hazards due to high speeds, the tire pressure is slightly reduced; 3. Tire damage. If there is an issue with the tire when leaving the factory or if the tire is punctured during use, when the low tire pressure alarm for the new car's tire is triggered, it is essential to carefully check whether the tire is damaged.
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What are the effects of removing a car thermostat?

Removing the car thermostat will prevent the car from sensing temperature during cold starts, resulting in cold engine starts and accelerated engine wear. Here is some information about car thermostats: Purpose of installation: To allow the engine to reach its optimal operating state as quickly as possible, reduce engine wear, improve fuel atomization, and at the same time increase the heating speed of the car's interior. Function: To control the circulation of coolant between the engine and the radiator. When the coolant temperature is relatively low, the thermostat remains closed, allowing only the coolant within the engine to heat up. This is referred to as a "small circulation." When the coolant in the engine reaches a certain temperature, the thermostat automatically opens to connect with the radiator, which is then referred to as a "large circulation."
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How to Fix the Unavailable IPA Display on Corolla Dashboard?

IPA shows no information. There are up, down, left, and right buttons on the left side of the multifunction steering wheel. Press the left or right button to restore it. Introduction to Steering Wheel: The steering wheel is a wheel-shaped device used to control the direction of cars, ships, airplanes, etc. Its function is to convert the force applied by the driver to the edge of the steering wheel into torque and then transmit it to the steering shaft. Function of Steering Wheel: The steering wheel is generally connected to the steering shaft via splines. Its function is to convert the force applied by the driver to the edge of the steering wheel into torque and then transmit it to the steering shaft. Using a larger-diameter steering wheel reduces the hand force required from the driver when turning. The steering intermediate shaft, as a connecting component between the steering gear and the steering shaft, facilitates the standardization of the steering gear, compensates for errors during manufacturing and installation, and makes the installation of the steering gear and steering wheel more reasonable in the vehicle.
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How many liters of oil does the Changan CC Ruicheng need?

The Changan CC Ruicheng requires 62 liters of oil. Based on the Ruicheng CC's combined fuel consumption of 6.5L per 100 kilometers, a full tank can cover a distance of over 900 kilometers. The Ruicheng CC is a domestic B-segment luxury sedan, with body dimensions of 4780mm in length, 1825mm in width, and 1465mm in height, and a wheelbase of 2780mm. In terms of power, the Changan CC Ruicheng is equipped with a 1.5T all-aluminum 4-cylinder engine, delivering a maximum power of 156 horsepower and a maximum torque of 225 Nm. Regarding configurations, the Changan CC Ruicheng offers various features depending on the model, including a full LCD instrument panel, electric adjustment for the driver's seat, one-key start, collision warning, panoramic imaging, and ventilation and heating for the front seats.
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Is Chengdu on China 5 or China 6 Emission Standards?

Chengdu has implemented the China 6 emission standards. The deadline for registering China 5 vehicles in Chengdu was July 1, 2019 (exclusive), while the registration of China 6a vehicles ceased on July 1, 2023. Definition of China 6 Emission Standards: The China 6 Motor Vehicle Pollutant Emission Standards, implemented in the sixth phase, are established to enforce the 'Environmental Protection Law of the People's Republic of China' and the 'Air Pollution Prevention and Control Law of the People's Republic of China.' These standards aim to prevent pollution from exhaust emissions of compression-ignition and gas-fueled spark-ignition engine vehicles, protect the ecological environment, and safeguard human health. Composition of China 6 Standards: It consists of two parts: 'Limits and Measurement Methods for Emissions from Light-Duty Vehicles (China 6)' and 'Limits and Measurement Methods for Emissions from Heavy-Duty Diesel Vehicles (China 6).'
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Does a car being flooded mean it cannot be driven?

Do not continue driving after the car has been flooded. If the vehicle stalls during the water crossing, do not attempt to restart it. There are three possible scenarios if you restart the engine, as detailed below: Air filter gets wet: The car can still be driven, but with water in the air filter, the engine will draw in some water into the intake tract, forming water vapor. This vapor mixes with gasoline and burns completely, having minimal impact on the engine. A small amount of water enters the engine: If a small amount of water enters the engine and mixes with the oil, the oil quality deteriorates. Oil containing water increases wear on engine components, potentially leading to increased engine noise and vibration in the future. The engine makes noise and stalls again after a few seconds: This is the most severe scenario. Since water cannot be compressed, when it enters the cylinder while the engine is still running at high speed, the inability to compress the water during the power stroke directly causes the valves and connecting rods to bend, the piston to seize, severe cylinder wear, and crankshaft bending. Replace the oil as soon as possible.
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Do You Need to Turn on the Air Conditioning for Rear Window Defogging?

Rear window defogging does not require turning on the air conditioning. Simply turn on the defrost (fog) switch and the air blower switch to direct airflow to the front windshield. Below is relevant information about car defogging: Defogging Button Symbols: The symbol for the front windshield defogging button is a fan shape with many curves. The symbol for the rear windshield defogging button is a square with many curves. Front windshield defogging uses the air conditioning, while rear windshield defogging uses electric heating wires. Rear Windshield Defogging Function: In some cars, when the rear windshield defogging function is activated, the side mirror heating function also turns on. These cars do not have a separate side mirror heating button. If you need to use the side mirror heating function, simply press the rear windshield defogging button.
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