How Should Beginners Steer the Wheel?

What is the impact of seat height on reference points?

Hill starts, right-angle turns, S-curve driving, reverse parking, and parallel parking all require reference points. Here are the relevant introductions: 1. Hill start: This is a field test in the second subject of the driver's license test, which involves starting a vehicle parked on a steep slope upwards. 2. S-curve driving: As one of the four items in the second subject of the driver's license test, it is relatively simple overall, but it is easy for the vehicle body to brush or press the line, resulting in failing the test. 3. Reverse parking: This is an assessment point in the driver's test. It involves correctly reversing the vehicle into the garage from both sides while in motion. 4. Parallel parking: First, the visual estimation must be accurate. No matter the length of the parking space grid, the rear of the car must enter first to ensure smooth positioning.

17

3

Share

What kind of engine oil should be used for naturally aspirated car maintenance?

Fully synthetic engine oil should be used for naturally aspirated car maintenance. The following is a related introduction to engine oil: 1. Mineral oil: A commonly used lubricant in the market. Essentially, it utilizes the inferior components of crude oil. Mineral oil is inexpensive, but its service life and lubrication performance are inferior to synthetic oil, and it also causes significant environmental pollution. Additionally, mineral oil cannot completely remove impurities during the refining process, resulting in a higher pour point, making it unsuitable for use in extreme cold conditions. 2. Semi-synthetic engine oil: A product purified from mineral oil through hydrocracking technology, it is a mixture of mineral oil and fully synthetic oil in a ratio of 4:6. The purity of semi-synthetic oil is very close to that of fully synthetic oil, but its cost is slightly higher than that of mineral oil, making it an ideal transitional product from mineral oil to synthetic oil. 3. Fully synthetic engine oil: Fully synthetic engine oil is a high-grade oil among engine oils. It is derived from ethylene and propylene dispersed from natural gas or crude oil gas, and then undergoes complex chemical reactions such as polymerization and catalysis to form a lubricating fluid composed of large molecules.

19

0

Share

Why Maintain a Larger Following Distance on Wet Roads

Maintaining a larger following distance on wet roads is necessary because the reflection from water on the road can impair distance judgment, the slippery surface increases braking distance, and water spray from the vehicle ahead can reduce visibility. Below are some key points about driving through water: 1. Overview: Driving through water refers to navigating vehicles through low-lying, waterlogged areas, typically during rainy weather or in low-lying sections of roads with inadequate drainage. 2. Precautions: Before entering water, observe the road conditions carefully. While in water, maintain steady power, and after exiting, check the electrical systems. If the vehicle stalls in water, it should be towed to a 4S shop immediately for professional handling.

11

3

Share

What is a Flood Control Vehicle?

Flood control vehicles are typically specialized vehicles used during flood prevention periods. The following are the characteristics of flood control vehicles: 1. Extended service life: Stable flow with low pump speed reduces wear and extends lifespan; helical rotor design ensures smooth operation, no pulsation, and high efficiency. 2. Special mechanical seal: Leak-free with a longer-lasting balanced mechanical seal design, eliminating the need for manual pressure compensation devices. The mechanical seal is designed for strong vibrations or extremely harsh working conditions. 3. Compact pump size: Mechanical seal oil cooling allows the pump to run dry. 4. Minimal maintenance workload: No special tools required. Components can be inspected or replaced online without disassembling pipelines.

12

1

Share

Does Asphalt Cleaner Damage Car Paint?

Asphalt cleaner does not damage car paint. Here is relevant information about asphalt cleaner: 1. Tar cleaner: To remove asphalt from your car, it is recommended to use a dedicated tar cleaner. The main component of asphalt is hydrocarbon, which is a hydrophobic material that does not dissolve in water but dissolves in carbon disulfide. Dedicated tar cleaners can quickly penetrate and dissolve asphalt, effectively cleaning tar and asphalt stains from the car body and wheel hubs. They provide excellent stain removal, cleaning, and polishing effects. 2. Timely cleaning: Asphalt on the car must be cleaned promptly. Asphalt is corrosive, and if left uncleaned for a long time, it can corrode the car paint, causing light-colored paint to turn yellow. This not only affects the appearance but also damages the car. It is recommended to apply wax treatment to the paint surface after cleaning the asphalt.

14

5

Share

Is a slight bulge in the tire a problem?

A slight bulge in the tire is indeed a problem. A tire bulge occurs when the internal cords in the tire's ply layer break, allowing air to push outward from the broken cords. Without the support of these cords, the elastic rubber can bulge under the pressure of the air. When a tire bulges, it indicates that the internal cords have already broken, and continued use may lead to a blowout. External forces that can cause cord breakage include the following situations: 1. The tire experiences a significant impact, such as driving at high speed over rough roads or speed bumps with large height differences. 2. Parking the car on uneven ground for extended periods: Some drivers may park on sidewalks inside curbs to find a spot, which over time can severely affect the tire's cords, leading to bulging. 3. Driving with chronically low tire pressure: Low tire pressure puts excessive strain on the tire's ply layer, causing fatigue in the cords and eventual breakage, resulting in bulging.

16

5

Share

How Should Beginners Steer the Wheel?

What is the impact of seat height on reference points?

What kind of engine oil should be used for naturally aspirated car maintenance?

Why Maintain a Larger Following Distance on Wet Roads

What is a Flood Control Vehicle?

Does Asphalt Cleaner Damage Car Paint?

Is a slight bulge in the tire a problem?

What does a hatchback car mean?

What Causes the Clutch to Lose Pressure and Not Rebound, Making It Impossible to Engage Gears?

What is the general length of a sedan in meters?

Which has priority, left lane change or right lane change?