What are the three filters in routine car maintenance?

Can Antifreeze Be Mixed?

Antifreeze should not be mixed and must be of the same brand. Different brands of antifreeze have varying production formulas, and mixing them may cause chemical reactions between multiple additives, rendering them ineffective. The basic indicators of antifreeze are its freezing point and boiling point. On the market, antifreeze comes in several specifications with freezing points of -15°C, -25°C, -30°C, and -40°C. Generally, it is advisable to choose one that is at least 10°C lower than the lowest temperature in your region. The main components of antifreeze are: 50% pure water, 40% methanol, and 10% other substances. Antifreeze is generally categorized into three types: ethanol-water, glycerin-water, and ethylene glycol-water.

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Which gear is for forward in an automatic transmission?

In an automatic transmission, the D gear is the forward gear. When shifting to D (Drive) for forward or R (Reverse) for backward, you must press the brake pedal; otherwise, the gear cannot be shifted. Once the gear is engaged, release the brake pedal, and the vehicle will begin to move forward (or backward). Then, press the accelerator to drive. To stop, simply press the brake pedal, and the vehicle will come to a halt. Below is a brief introduction to automatic transmission gears: 1. An automatic transmission, as the name suggests, does not require the driver to manually shift gears. The vehicle automatically selects the appropriate gear based on driving speed and traffic conditions. Typically, an automatic transmission car has six gear positions, arranged from top to bottom as: P, R, N, D, S, L. 2. On the gear lever, P stands for Park (Parking), R for Reverse, N for Neutral, and D for Drive. For a manual-automatic transmission, '+' means upshift and '-' means downshift. For downhill or uphill driving, simply use the D gear and control the speed with the brake and accelerator. When waiting at a red light or stopping briefly, keep the gear in D and press the brake pedal.

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What Causes Car Window Glass to Not Roll Up?

If the car window glass cannot roll up, you can initialize the window lift switch. The initialization method is as follows: 1. First, turn on the ignition switch, pull the lift switch upward to raise the glass to the top, and continue holding for more than 3 seconds; 2. Release the switch and immediately press it down to lower the glass to the bottom, holding for more than 3 seconds; 3. Pull the switch upward again to raise the glass to the top, and continue holding for more than 3 seconds to complete the process. Below is a brief introduction to why the glass may not roll up: 1. If the car has been used for a long time, the rubber guide channel of the window glass may accumulate dust or experience rubber aging, often causing the window glass to rise slowly or stop at a certain position. Some window glass may tilt to one side while rising, making it difficult to roll up. Incorrect operation of the lift switch can also lead to issues with the window regulator. 2. The correct way to use the lift switch is: when raising the window, lift the switch all the way up, and when lowering it, press it all the way down. Avoid repeatedly pressing the switch bit by bit, as this can cause the contacts to instantly bear a strong current, leading to switch burnout.

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What is the standard tire pressure for car tires?

Car tires have a standard pressure range of 2.4-2.5 bar, which is considered normal. According to the international GBT2978-2008 standard, the standard pressure for regular tires is 2.4-2.5 bar. Factors affecting tire pressure are as follows: Seasonal factors: Winter: Adjust the tire pressure slightly higher by about 0.2 bar based on the standard tire pressure. Summer: Use the lower limit of the standard tire pressure. For cars parked outdoors in summer, the pressure can generally be about 0.1 bar lower than the standard to avoid blowouts due to high temperatures. Load conditions: Empty/half load: Use the lower limit of the standard tire pressure (the tire pressure indicated on the vehicle's sticker can serve as a reference for the minimum pressure). Full load: Use the upper limit of the standard tire pressure when fully loaded. Tire pressure measurement conditions: Hot tire: The pressure differs between cold and hot tires, so measurement should be done carefully. The difference is about 0.3 bar. Cold tire: Measure the pressure after the car has been parked for at least three hours or if the tires have not been driven more than 2 km. If you must measure the pressure when the tire is hot, subtract approximately 0.2 bar from the measured value to get the cooled inflation pressure.

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Does a Faulty Oxygen Sensor Affect Engine Performance?

When the rear oxygen sensor in a car fails, the engine may exhibit symptoms such as unstable idling, misfiring, and surging. Therefore, it is essential to promptly address the issue or replace the sensor. A faulty oxygen sensor prevents the electronic fuel injection system's computer from receiving information about the oxygen concentration in the exhaust pipe, making it unable to perform feedback control on the air-fuel ratio. This can lead to increased fuel consumption and higher exhaust emissions. Additional information: To diagnose the issue, remove the oxygen sensor from the exhaust pipe and check if the vent holes on the sensor housing are clogged or if the ceramic core is damaged. If any damage is found, the oxygen sensor should be replaced. The condition of the oxygen sensor can also be assessed by observing the color of its tip, as follows: 1. Light gray tip: This indicates a normal condition. 2. White tip: Caused by silicon contamination, requiring immediate replacement of the sensor. 3. Brown tip: Caused by lead contamination; if severe, the sensor must also be replaced. 4. Black tip: Caused by carbon buildup, which can usually be cleared automatically after addressing the engine's carbon deposit issue.

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How to Determine Whether Coolant Needs to Be Replaced

Here are the methods to determine whether coolant needs to be replaced: 1. If the temperature gauge is normal, the coolant does not need to be replaced; 2. If the coolant reservoir is low on coolant, simply top it up; 3. If the engine temperature is high, drain the existing coolant, flush the radiator, and then refill with new coolant. Additional information: 1. The coolant in the vehicle's engine radiator is generally replaced every two years or every 40,000 kilometers traveled. Taxis should be replaced more frequently. When adding coolant, ensure the product is within its validity period. When replacing, drain all the old coolant, thoroughly clean the cooling system, and then refill with new coolant. 2. When the coolant level is low, use the same brand and model of coolant to top it up. Coolant is an indispensable part of a car engine. It circulates within the engine cooling system, carrying away excess heat generated during engine operation, allowing the engine to operate at normal working temperatures. When the coolant level is insufficient, the engine temperature will rise excessively, potentially causing damage to engine components. Once the owner notices insufficient coolant, it should be promptly topped up.

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What are the three filters in routine car maintenance?

Can Antifreeze Be Mixed?

Which gear is for forward in an automatic transmission?

What Causes Car Window Glass to Not Roll Up?

What is the standard tire pressure for car tires?

Does a Faulty Oxygen Sensor Affect Engine Performance?

How to Determine Whether Coolant Needs to Be Replaced

What to Do When Unable to Remove the Key After Driving?

What is the starting letter of Yantai's license plate?

What to Do If Your Driver's License Accumulates 12 Points?

What are the consequences of expired compulsory vehicle insurance?