What is the fuel tank capacity of the Lamando?

How Often Can You Take the Subject 2 Test?

Subject 2 (Driving Test Part 2) is scheduled based on appointment availability. However, if you fail the test, you must wait at least 10 days before reapplying for another attempt. According to Article 44 of the 'Regulations on the Application and Use of Motor Vehicle Driving Licenses,' each subject test can be taken once, with one retake opportunity if failed. If you skip the retake or fail it again, the current test session ends, and you must reapply. Note that for Subject 2 and Subject 3 tests, reappointments must be made at least 10 days later. Below are key precautions for the Subject 2 test: 1. Entering the waiting hall: Follow exam rules—no loud noise or unnecessary movement. 2. After entering the car: Quickly adjust the seat, mirrors, and fasten your seatbelt. Verify your fingerprint once ready, then follow voice prompts to proceed to the designated test track. 3. During the test: Complete all tasks strictly according to the test requirements for each item.

18

3

Share

What is the difference between deducting 12 points and 23 points on a driver's license?

Deducting 12 points and 23 points differs mainly in the amount of fines required, while other penalties remain the same. The following are the consequences of having 23 points deducted from a driver's license: 1. Probationary period: For a probationary license, a Class C license will be automatically revoked, while a Class A or B probationary license will also be revoked. If the revoked license is not the highest level, a downgrade will also be required. 2. Study: The driver must attend a seven-day course on traffic safety laws, regulations, and related knowledge, followed by an exam. Failure to attend will result in the suspension of the license. 3. Annual inspection: The vehicle cannot undergo its annual inspection until all traffic violation records are resolved. 4. Continuing to drive after accumulating 23 points: If the driver continues to drive after accumulating 23 points and incurs additional deductions, they will be required to retake the third driving test (Subject 3).

1

Share

Can Cars Use Methanol Gasoline?

Gasoline vehicles can only use methanol under one condition: the car must be a dedicated methanol vehicle designed to use methanol as fuel. This is because methanol vehicles are equipped with specialized engines and devices that allow for the safe use of methanol. Other vehicles should not use methanol. Hazards of Methanol Gasoline to Vehicles: Methanol typically contains acidic substances during production, and its inherent hygroscopic nature means it retains small amounts of water during storage. Additionally, oxidation by air or bacterial fermentation can produce small quantities of organic acids. Furthermore, the formaldehyde and formic acid generated after methanol combustion can cause severe corrosion and wear to the engine. Research by Ford Motor Company in the U.S. found that using methanol gasoline increases the iron content in engine lubricating oil by 5.2 times compared to unleaded gasoline. The primary wear and corrosion occur on piston rings and cylinder walls, mainly due to the erosion of metal surfaces by methanol and its combustion byproducts, such as formic acid, formed through intermediate free radical reactions. Additionally, methanol's high latent heat of evaporation can lead to poor vaporization, causing it to flow into cylinder walls, wash away the lubricating oil film, dilute the oil, and result in severe emulsification, leading to friction wear on engine components.

2

Share

Can You Mix Different Engine Oils in a Car?

It is not advisable to mix different engine oils in a car. The reasons why engine oils should not be mixed include reduced performance when new and old oils are mixed, and the formation of turbidity when different oils are combined. Below are the detailed explanations: Mixing new and old oils reduces performance: New and old engine oils should not be mixed. Old oil contains a large amount of oxidative substances. When new oil is mixed with old oil, the oxidation rate of the new oil increases, thereby reducing its effectiveness and service life. Tests have shown that when the old oil in a diesel engine is completely replaced with new oil, the oil's service life can reach up to 1,500 hours. However, if half of the new oil is mixed with half of the old oil, the service life of the oil is reduced to only 200 hours, significantly shortening its usability. Mixing different oils causes turbidity: Engine oils of different brands and grades should not be mixed. Since the chemical additives in oils of different brands and grades vary, these additives can sometimes react with each other, reducing lubrication effectiveness and producing acidic or alkaline compounds that accelerate the corrosion of engine components. Most modern engine oils use sulfonates as dispersant detergents, while some oils use salicylates instead. Salicylates are incompatible with the sulfonates used in other lubricants. If these two types of lubricants are mixed, phenomena such as layering, turbidity, and deterioration of cleaning ability may occur.

11

4

Share

Is a tire pressure of 2.8 normal in summer?

Summer tire pressure of 2.8 is not normal. According to the provisions and requirements of the international GBT2978-2008 standard, the standard tire pressure for standard tires is 2.4-2.5bar. A pressure of 2.8bar exceeds the maximum value of the standard tire pressure, so it is not normal. Generally, the lower limit of the standard tire pressure for car tires is sufficient. For example, the lower limit for standard tires is 2.4bar. If the car is often parked outdoors, the tire pressure can generally be about 0.1bar lower than the standard to avoid tire blowouts due to high temperatures. Hazards of excessive tire pressure: The friction and adhesion of the tire will decrease, affecting braking performance; It can cause steering wheel vibration and deviation, reducing driving comfort; It accelerates the local wear of the tread pattern in the center of the tire, reducing the tire's lifespan; The vibration of the car body increases, indirectly affecting the lifespan of other components; It causes excessive stretching and deformation of the tire cords, reducing the elasticity of the tire body and increasing the load the car bears while driving; Puncture resistance decreases. When encountering sharp objects like nails or glass on the road, they can easily penetrate the tire, and the impact can cause internal cracks and explosions, leading to a blowout.

14

2

Share

What is the principle of car steering?

The principle of car steering mainly involves the steering wheel driving the steering gear, which in turn activates the rack and pinion steering mechanism. This causes the front tie rod to swing left and right, changing the angle of the front wheels to achieve the steering effect. The car steering system is used to maintain or change the direction of the vehicle's movement, whether moving forward or backward. The car steering system is crucial for driving safety, which is why its components are referred to as safety-critical parts. Both the steering system and the braking system are essential safety systems that must be given high priority in vehicles. Structure of car steering mechanisms: In terms of widespread usage, there are four main types of steering mechanisms: worm and peg type (WP), worm and roller type (WR), recirculating ball type (BS), and rack and pinion type (RP). These four types of steering mechanisms have been widely used in automobiles. Among them, the recirculating ball steering mechanism and the rack and pinion steering mechanism have become the two primary steering systems in modern vehicles worldwide. Meanwhile, the worm-type steering mechanisms are gradually being phased out or retaining a minor role. Due to its various advantages, the rack and pinion steering mechanism has seen rapid development in small vehicles (including passenger cars, light trucks, and multi-purpose vehicles). On the other hand, larger vehicles primarily use the recirculating ball steering mechanism as their main structure.

18

4

Share

What is the fuel tank capacity of the Lamando?

How Often Can You Take the Subject 2 Test?

What is the difference between deducting 12 points and 23 points on a driver's license?

Can Cars Use Methanol Gasoline?

Can You Mix Different Engine Oils in a Car?

Is a tire pressure of 2.8 normal in summer?

What is the principle of car steering?

What Could Be the Reasons for the 8th Generation Accord's Remote Door Lock Not Responding?

What speed is safe to cross speed bumps without damaging the car?

What Are the Types of Traffic Signals?

What are the differences between the 7th and 7.5 generation Golf?