How Many Kilometers Should You Change Engine Oil?

Why does the idle speed decrease instead of increasing when the air conditioner is turned on?

The reasons why the idle speed decreases instead of increasing when the air conditioner is turned on are as follows: The engine control logic is faulty and cannot receive the signal of the air conditioner being turned on: When it cannot determine whether the air conditioner is turned on, the engine control unit (ECU) mistakenly assumes it is a temporary high load and attempts to offset the resistance at idle by increasing the speed. When the engine speed drops, it cannot bear the load of the air conditioner compressor and increases the speed again. This back-and-forth results in unstable idle speed. The air conditioner control circuit is faulty and cannot send the signal of the air conditioner being turned on: Similar to the first reason, because it cannot determine the status of the air conditioner, the ECU continuously adjusts the idle speed, resulting in unstable idle speed. A fault in the air conditioner circuit causes the air conditioner to work intermittently: When the air conditioner is not working, the air conditioner compressor belt is idling without load, so it does not affect the engine load. The intermittent operation of the air conditioner compressor causes the engine to continuously adjust the idle speed, resulting in unstable idle speed.

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What could be the reason for a Buick Excelle not responding when attempting to start with power?

Buick Excelle not responding when attempting to start with power may be caused by issues such as the ignition switch not being in the correct position or being damaged, severe battery depletion, checking the working status of electrical appliances, or a damaged starter relay. If the vehicle frequently experiences this problem, it is necessary to take it to a repair shop for inspection. Below is an extended introduction: 1. Brand Introduction: The Buick Excelle is an entry-level family sedan launched by SAIC General Motors Buick, with its prototype being the latest globally developed mid-size sedan by General Motors. In 2003, the first-generation Excelle was officially launched for sale. In 2004, the hatchback version, the Excelle HRV, was introduced. In 2005, the Excelle station wagon version was released. In 2008, the Excelle underwent a facelift and generational change. In 2013, the Excelle's powertrain was upgraded. On August 8, 2016, the Excelle was announced to be discontinued. On September 18, 2019, the 2020 Buick Excelle was officially launched by SAIC General Motors Buick, with the all-new generation Excelle making a refreshed debut, undergoing comprehensive upgrades in design, power, fuel efficiency, safety, and connectivity, setting a new standard for entry-level family sedans to meet the needs of young users for their first car. 2. Brand Positioning: The Buick Excelle is positioned as an entry-level family vehicle, featuring a dynamic exterior and high-quality interior, offering the quality enjoyment of a 'first car in life.' The new drive system is smooth and fuel-efficient, while the entire lineup comes standard with the 10th-generation OnStar assistant, featuring an onboard 4G-LTE mobile hotspot, utilizing eConnect intelligent connectivity technology, and supporting Apple CarPlay and Baidu CarLife.

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How long can the annual inspection be delayed if forgotten?

It cannot be delayed. Small and micro non-operational passenger vehicles must undergo inspection every 2 years within the first 6 years; after 6 years, they must be inspected annually; after 15 years, they must be inspected every 6 months. Below is additional information: Annual Inspection: According to the "Regulations on the Registration of Motor Vehicles" (Order No. 102 of the Ministry of Public Security), the owner of a motor vehicle can apply for an inspection compliance mark at the vehicle management office of the registration location within three months before the expiration of the motor vehicle inspection validity period. In other words, if the deadline is July 2018, the earliest the annual inspection can be completed is May 1st, and the latest is July 31st. How to check the annual inspection time: Motor vehicles can undergo the annual inspection within 3 months before the annual inspection deadline. The deadline for the annual inspection can be found on the supplementary page of the vehicle license, which states the inspection validity period until a certain year and month. For example, if the supplementary page of the vehicle license states "Inspection validity period until July 2018," then the annual inspection should be conducted within May, June, and July, with the final deadline being July 31st.

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What front suspension is used in the new 3 Series?

The new 3 Series uses a double-joint independent front suspension, which is employed in many BMW models. Additional information: 1. The 3 Series is a mid-size sedan from BMW, equipped with three engine options: a low-power 2.0-liter turbocharged engine, a high-power 2.0-liter turbocharged engine, and a medium-power 2.0-liter turbocharged engine. 2. The low-power 2.0-liter turbocharged engine produces 156 horsepower and 250 Nm of maximum torque. This engine reaches its maximum power output at 4,500 to 6,500 rpm and its peak torque at 1,250 to 4,000 rpm. It features direct fuel injection and an aluminum alloy cylinder head and block. 3. The medium-power 2.0-liter turbocharged engine delivers 184 horsepower and 300 Nm of maximum torque, with maximum power achieved at 5,000 to 6,000 rpm and peak torque at 1,350 to 4,000 rpm. It also includes direct fuel injection and an aluminum alloy cylinder head and block. 4. The high-power 2.0-liter turbocharged engine generates 258 horsepower and 400 Nm of maximum torque, reaching its maximum power at 5,000 to 6,500 rpm. This engine is equipped with direct fuel injection and an aluminum alloy cylinder head and block.

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Should You Press the Clutch or Brake First When Braking in a Manual Transmission Car?

In any situation when braking, the brake should always take priority. Sometimes the clutch can be pressed simultaneously, and sometimes the brake can be pressed slightly later, but the clutch should never be pressed before the brake. Several years ago, media conducted tests on emergency braking in manual transmission cars. Additional information is as follows: For beginners: Regardless of road conditions, always press the brake first and then the clutch to develop a habit. This helps cultivate emergency awareness in drivers. Let’s start with the simplest scenario—driving on a highway where the situation is not urgent and the car needs to be brought to a gradual stop. This is a situation every driver encounters daily. At this point, check the current speed. When the speed is relatively high, the driver can initially release the accelerator and press the brake without touching the clutch, waiting until the engine RPM drops to a point where downshifting is necessary. During high-speed driving: Especially when driving at speeds above 120 km/h, pressing the clutch before the brake can result in coasting in a high gear. Since the clutch does not contribute to deceleration in this state, it can also pose certain dangers. Therefore, when driving at high speeds, the method taught by driving instructors should not be applied. Instead, the driver should first press the brake to reduce speed and then press the clutch to achieve the deceleration goal.

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What are the two white dashed lines in the circle?

The two white dashed lines in the circle are the left-turn waiting area markings. The left-turn waiting area is specifically for left-turning vehicles. When the straight signal light is green and the left-turn signal is red, left-turning vehicles can enter the left-turn waiting area to wait. When the left-turn signal turns green, vehicles waiting in the waiting area can quickly pass through the intersection. When both the straight and left-turn signals are red, vehicles are not allowed to enter the left-turn waiting area. According to China's road width conditions, each motor vehicle lane on urban arterial roads is 3.5 meters wide. Roads implementing the "left-turn waiting area" are generally one-way roads with three or more lanes. Based on each traffic signal cycle, it is estimated that 3 or 4 more vehicles can pass per signal cycle, approximately 100 vehicles per hour. This measure will effectively increase the traffic capacity of the intersection and reduce vehicle congestion. U-turns are allowed in the left-turn waiting area markings. The correct procedure is: when the left-turn signal is red, if you are the first in line, enter the waiting area to wait. When the signal turns green, you can start the U-turn from the middle of the road. If you are not first in line, as long as you have passed the pedestrian crosswalk, you can make a U-turn at any dashed line of the left-turn waiting area. Making a U-turn within the red box or red circle will result in fines and penalty points.

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How Many Kilometers Should You Change Engine Oil?

Why does the idle speed decrease instead of increasing when the air conditioner is turned on?

What could be the reason for a Buick Excelle not responding when attempting to start with power?

How long can the annual inspection be delayed if forgotten?

What front suspension is used in the new 3 Series?

Should You Press the Clutch or Brake First When Braking in a Manual Transmission Car?

What are the two white dashed lines in the circle?

Is a tire pressure of 2.8 too high for small cars in summer?

What are the effects of adding the wrong 92 gasoline to a GL8?

Can Tesla Not Use Blue License Plates?

What Causes the Left Side to Be Narrower and the Right Side Wider When Reversing into a Left Parking Space?