What Do the Left and Right Feet Control When Driving?

What speed can a car reach in third gear?

3rd gear normally allows driving up to 30 mph, beyond which you should shift to 4th gear. Speed ranges for different gears: After starting in 1st gear, shift to 2nd at 10-20 mph, to 3rd at 20-30 mph, to 4th above 40 mph, and to 5th above 80 mph. Downshifting procedure: Release the accelerator pedal, quickly depress the clutch pedal, move the gearshift to neutral, then release the clutch pedal. Quickly tap the accelerator pedal ("blip the throttle"), immediately depress the clutch pedal again, shift to the next lower gear, and smoothly release the clutch pedal using the quick-pause-slow technique to continue driving in the new gear.

8

5

Share

Why Can't High Beams Be Equipped with Lenses?

The reasons why high beams are not equipped with lenses are as follows: 1. Generally, when retrofitting xenon lights with lenses, it is the low beams that are modified, not the high beams. This is to prevent the high beams from being focused, allowing the light to scatter and illuminate farther and wider. High beams are mainly used to supplement the dark areas not covered by low beams. If lenses were installed on high beams, the light would be focused directly on distant areas, resulting in a straight beam that only illuminates the far road surface while making it difficult to see the nearby road surface. Additionally, the straight beam would obscure overhead road signs, affecting driving. After retrofitting xenon lights for high beams, light scattering is a normal phenomenon due to the design of the high beam reflector. Therefore, to ensure proper illumination, lenses should not be added. 2. Xenon lights are brighter and more glaring, but their beams are more scattered, requiring lenses to focus the light. Without lenses, the scattered light from low beams would shine into the eyes of other drivers instead of the road, not only reducing illumination effectiveness but also posing a significant safety hazard by impairing the vision of other drivers.

8

4

Share

What are the reasons for the yellow light on a China V diesel engine?

The reasons for the yellow light on a China V diesel engine are as follows: Oxygen sensor failure: If the oxygen sensor is damaged or the sensor plug is damaged or loose, it can cause the mixture to be too lean or too rich, triggering the fault light. Spark plug carbon buildup: Excessive carbon buildup can cause the ignition coil to reverse breakdown, leading to ignition coil failure, poor ignition, and incomplete combustion. At this time, the fault light will also illuminate. Engine misfire: Engine misfire is also accompanied by the following symptoms: high fuel consumption, black smoke, weak car acceleration, severe shaking, and increased noise. The fault light will also come on at this time.

12

1

Share

What is the date for tire code 4621?

Tire code 4621 represents the production date of the tire, where 46 stands for the 46th week of the year, and 21 indicates the year 2021. Regarding tire parameters, they can be identified from the markings on the sidewall of the tire. Currently, almost all passenger car tires use radial tires. According to the identification method of radial passenger car tire specifications, the parameters are labeled in the order of "tire width, aspect ratio, compatible rim diameter, load index, and speed rating." If a tire's specification is 185/60R15-84H, its parameters are as follows: 185 indicates the tire width is 185mm; 60 represents the aspect ratio, meaning the section height is 60% of the width; R indicates that the tire is a radial tire, with the inner layer manufactured using the radial method; 15 is the rim diameter in inches; 84 is the load index, indicating a maximum load capacity of 500 kg, with four tires totaling 500×4=2000 kg; H refers to the speed rating of 210 km/h. Under normal circumstances, the shelf life of a tire is about 4-5 years. Even if the tire has been driven less, it still needs to be replaced once it exceeds its shelf life. When purchasing, pay attention to the production date and try not to buy tires that have been stored for more than 3 years. Since tires are rubber products, they will age over time, and their performance will deteriorate. If cracks appear, there is a higher risk of tire blowouts, which can affect driving safety.

13

4

Share

Can Out-of-Town Used Cars Be Licensed Locally?

Out-of-town used cars can be licensed locally. If you want to license a car purchased from another city locally, you only need to meet one condition: having the purchase invoice and vehicle certification, and then you can license it locally. When buying a car from another city and licensing it locally, there are several points to note: Purchase compulsory traffic insurance: There are two reasons for purchasing compulsory traffic insurance: first, the insurance policy is required for licensing; second, any vehicle on the road must have compulsory traffic insurance. Obtain temporary license plates: Without license plates or temporary license plates, motor vehicles are not allowed to operate. This is also a national legal requirement. There are two types of temporary license plates: one is only valid for driving within the city, and the other is valid nationwide. Be sure to obtain the nationwide temporary license plates.

6

1

Share

Will the car alarm when the engine oil is low?

When the car is low on engine oil, the oil warning light on the dashboard will illuminate to alert the owner that the oil needs to be replaced promptly. The oil warning light is symbolized by an oil can dripping oil, typically in red or yellow, and it indicates both the oil level and pressure inside the engine. Precautions for using engine oil: When checking the oil dipstick, pay attention to whether the oil level is between the maximum and minimum limits. If the oil level is too high, it should be reduced promptly; otherwise, it can increase the pressure in the crankcase, accelerating the aging and deformation of oil seals, ultimately leading to oil leaks and affecting the engine's lifespan. If the oil level is too low, stop and add oil immediately or wait for assistance, as it can accelerate the wear of pistons and cylinder walls. When the oil is severely lacking, the engine will quickly experience cylinder scuffing and piston seizure due to insufficient lubrication, leading to severe engine damage. When selecting engine oil, consider the following precautions: Choose engine oil based on the engine's requirements. It is unnecessary to use overly advanced oil in engines with lower requirements, nor should lower-grade oil be used in engines with higher requirements. Multi-grade oil is recommended as it is economical, long-lasting, and efficient, providing better protection for the engine. Due to the characteristics of multi-grade oil, it may appear darker prematurely and have lower oil pressure compared to conventional oil, which is normal.

18

0

Share

What Do the Left and Right Feet Control When Driving?

What speed can a car reach in third gear?

Why Can't High Beams Be Equipped with Lenses?

What are the reasons for the yellow light on a China V diesel engine?

What is the date for tire code 4621?

Can Out-of-Town Used Cars Be Licensed Locally?

Will the car alarm when the engine oil is low?

Does Exceeding the Oil Level Upper Limit Affect the Engine?

Does opening the choke on a motorcycle consume more fuel?

What Causes Stiff and Unsmooth Steering in a Car?

What is the reason for the peeling of a layer of film on car headlights?