What are the main components of gear oil?

Why is the Kia K4 air conditioning not cooling?

Here are the possible reasons why the Kia K4 air conditioning is not cooling: 1. Reason one: The vehicle's air conditioning system is low on refrigerant. In this case, you need to go to a repair shop to check the system pressure with a pressure gauge. If it's low on refrigerant, it needs to be replenished promptly. 2. Reason two: The surfaces of the vehicle's condenser and radiator are too dirty, leading to poor heat dissipation. In this case, you need to go to a repair shop to clean the surfaces of the condenser and radiator. 3. Reason three: The vehicle's air filter is too dirty, resulting in low air speed. In this case, you need to replace the air filter with a new one. 4. Reason four: The quality of the refrigeration oil in the compressor of the refrigeration system has deteriorated, leading to reduced lubrication efficiency, which can cause damage to the air conditioning compressor. This directly affects the expansion valve and throttle valve, causing them to malfunction and resulting in the car's air conditioning not cooling.

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How Long Before Tree Sap on a Car Becomes Impossible to Remove?

Tree sap on a car can generally be removed, and there is no definitive answer as to how long it will take before it becomes impossible to wash off. However, it is recommended to clean it as soon as possible if you notice tree sap on your car, as it will be easier to remove. Once the sap penetrates the car paint, it can become more troublesome. When there is tree sap on your car, you can try the following methods to clean it: 1. Use rubber clay to wipe: This can also remove some small particles on the paint. 2. Soak a cleaning cloth in warm water: Cover the area with tree sap, wait for a while until the sap softens, and then wipe it off. 3. Use high-proof alcohol: Some methods work very well, as alcohol can dissolve and remove tree sap, but the effectiveness may vary. 4. Use specialized cleaning agents: Such as tar and asphalt cleaners, tree sap-specific removers, etc., which have decent cleaning effects.

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How to Clear the Wrench Light on the Arrizo 5?

The steps to clear the wrench light on the Arrizo 5 are: 1. Turn off the ignition switch and shut down the engine; 2. Locate the "Menu Toggle" button on the steering wheel, which is the button with two overlapping squares; 3. Press and hold the "Menu Toggle" button, then turn the ignition switch to the "ON" position; 4. After the car is powered on, it will start self-checking. Keep pressing the "Menu Toggle" button during this time. Once the self-check is completed, in about 5 seconds, the maintenance light will be cleared. The Arrizo 5 is a sedan produced by Chery. The car has dimensions of 4572mm in length, 1825mm in width, and 1482mm in height, with a wheelbase of 2670mm. It is equipped with a 1.5T engine, delivering a maximum power of 108kw and a peak torque of 210nm, paired with a 7-speed CVT transmission.

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Is it better to use 92 or 95 octane gasoline for regular cars?

If the car is equipped with a turbocharged engine, 95 octane gasoline should be used because turbocharged engines have a higher compression ratio. For naturally aspirated engines, 92 octane gasoline is recommended, as different types of engines require different gasoline grades. Below are the relevant details: 1. Difference: The only difference between the two is the octane rating, which affects the anti-knock performance. 95 octane gasoline has a higher octane rating than 92 octane, providing better anti-knock performance, but it is also more expensive. 2. Hazards of using the wrong gasoline: If a car designed for 92 octane uses 95 octane gasoline, the octane rating is too high, and the engine's compression ratio is insufficient, leading to incomplete combustion. Over time, carbon deposits will form in the combustion chamber, and gasoline will be wasted. If a car designed for 95 octane uses 92 octane gasoline, the engine's high compression ratio and insufficient octane purity will cause knocking, affecting power output, resulting in insufficient power and increased engine wear.

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What Parking Gradient Can Damage a Car?

Parking on a slope exceeding 15% can cause damage to the car. Parking on a slope increases the risk of the vehicle rolling backward, which can easily lead to accidents. Hazards of parking on a slope: It can fatigue the handbrake cable, affecting the braking performance of the handbrake; reduce the service life of the transmission; cause aging of the front and rear suspensions, leading to uneven stiffness and height, affecting ride comfort; pose a risk of rolling; and increase the likelihood of scraping accidents. Methods to prevent rolling after parking: When parking on a slope, shift the vehicle into P (Park) mode; engage the handbrake; press the car's one-touch start button to turn off the engine. For long-term parking on a slope, first use the handbrake to secure the vehicle, then place bricks in front of the wheels facing the downhill side to fix them, release the handbrake to transfer the force to the wheels, and then re-engage the handbrake. The car's braking system only functions when the engine is running. Most vehicles currently use a front disc and rear drum braking system, while some models employ a four-wheel disc braking system.

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Are the tires on the Mercedes-Benz C200 run-flat tires?

The tires on the Mercedes-Benz C200 are not run-flat tires. Differences between run-flat tires and regular tires: Raw materials: Regular tires: Regular tires are circular elastic rubber products assembled on various vehicles or machinery for ground rolling. Run-flat tires: Run-flat tires use highly heat-resistant synthetic rubber materials. Tire construction: Regular tires: Regular tires typically consist of three parts: the outer tire, inner tube, and flap. Some don't require inner tubes, featuring an inner layer with excellent airtight rubber and requiring specialized rims. Run-flat tires: Run-flat tires have a layer of high-molecular composite material (soft solid gel-like) attached to the inner wall. When the tire is punctured by sharp objects, this material can quickly repair the perforation.

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What are the main components of gear oil?

Why is the Kia K4 air conditioning not cooling?

How Long Before Tree Sap on a Car Becomes Impossible to Remove?

How to Clear the Wrench Light on the Arrizo 5?

Is it better to use 92 or 95 octane gasoline for regular cars?

What Parking Gradient Can Damage a Car?

Are the tires on the Mercedes-Benz C200 run-flat tires?

How to Choose Between Ford Edge and Buick Enclave?

How to Unclog the Sunroof Drain Pipe of Nissan Sunny?

What are the reasons for difficult cold starts in car engines?

Should the Handbrake Be Pulled After Parking an Automatic Transmission Car?