In which province is Changan Automobile Factory located?

What is the difference between coating agent and waxing?

The differences between coating agent and waxing are: 1. Different processes: The coating agent requires polishing before application to remove shallow scratches and oxidation layers from the paint surface, restoring its original gloss and improving the mirror effect; waxing is applied directly without any treatment to the paint surface. 2. Different materials: The material of the coating agent is silicon-based, which is inorganic; car wax is made of polyethylene emulsion or silicone-based polymer compounds, which are oxides. The functions of car waxing are: 1. Preventing car paint aging; 2. Keeping the paint surface bright and new; 3. Resisting UV rays and acid rain; 4. Effectively filling small scratches on the paint surface; 5. Reducing friction static electricity between the car body and air to prevent dust accumulation.

11

2

Share

Are Engine Guards and Chassis Armor the Same Thing?

Engine guards and chassis armor are not the same thing. An engine guard is a small protective plate located beneath the engine oil pan, while chassis armor is a coating sprayed over the entire car chassis to prevent rust. The engine is the device that provides power to the car, determining its performance, fuel efficiency, stability, and environmental friendliness. The chassis serves to support and install the car engine and its various components and assemblies, forming the vehicle's shape, receiving the engine's power to enable movement and maintain normal operation. Methods for chassis maintenance include: 1. Regularly check the condition of the car tires; 2. Periodically clean and wipe the car chassis; 3. Promptly inspect the operation of various components during driving; 4. Regularly maintain and inspect the car's shock absorbers.

1

4

Share

How to Replace the Battery in a Ford Edge Car Key?

To replace the battery in a Ford Edge car key, follow these steps: 1. Press the clip at the end of the key and open the back cover; 2. Insert a one-yuan coin into the slot at the end and twist to separate the outer cover, revealing the key battery inside; 3. Remove the old battery and install the corresponding new one; 4. Reattach the outer cover and back cover. Taking the 2021 Ford Edge as an example, its front suspension is a MacPherson independent suspension, the rear suspension is a multi-link independent suspension, equipped with a 2.0T turbocharged engine, delivering a maximum horsepower of 245 PS, a maximum torque of 390 Nm, and a maximum power of 180 kW, matched with an 8-speed automatic transmission.

14

3

Share

Should coolant be added when it is low or completely drained and refilled?

Coolant can either be added when it is low or completely drained and refilled. The steps for replacing coolant are: 1. Open the vehicle's engine hood, and you can see the coolant reservoir in the upper right corner; 2. Open the coolant drain plug under the radiator to drain the old coolant; 3. Add new coolant, tighten the cap, and the coolant replacement is complete. Precautions for using coolant are: 1. Try to use the same brand of coolant; 2. Avoid diluting it with water; 3. When adding, ensure the product is within its validity period; 4. If a large amount of particle precipitation appears, it indicates that the coolant has deteriorated and should no longer be used.

12

1

Share

Which is larger, the intake valve or the exhaust valve?

Intake valves are larger than exhaust valves. Air intake relies on vacuum suction, while exhaust is pushed out through compression. Additionally, to allow the engine to intake more fresh air and thereby enhance the vehicle's overall power performance, naturally more intake is required, which is why the intake valve is larger. The exhaust valve does not have this requirement. More details about valves are as follows: 1. The function of a valve is specifically responsible for introducing air into the engine and expelling the exhaust gases after combustion. Structurally, valves are divided into intake valves and exhaust valves. The intake valve's role is to draw air into the engine to mix with fuel for combustion; the exhaust valve's role is to expel the burned exhaust gases and dissipate heat. 2. The size requirements for intake and exhaust valves are determined based on the engine's air intake and exhaust volumes. If the valve clearance is too small, it can lead to a decrease in the engine's power and even cause the valve to burn out. Excessive clearance is also not allowed, as it not only accelerates wear on components but also affects the cylinder's intake and exhaust conditions. Therefore, it is essential to adjust according to standard specifications.

15

3

Share

Is SN engine oil fully synthetic?

SN engine oil is fully synthetic. Fully synthetic SL-grade engine oil is not considered high-quality fully synthetic oil because there are SM and SN-grade fully synthetic oils that perform better than SL-grade. There are even better PAO-based oils, such as imported GT Magic Red engine oil, which surpasses SN-grade and is naturally superior to SL-grade synthetic oil. More details are as follows: 1. SN-grade oils are almost always fully synthetic. 2. Engine oils starting with "S" are specifically for gasoline engines and cannot be used in diesel vehicles. 3. Engine oil grades include twelve levels: SA, SB, SC, SD, SE, SF, SG, SH, SJ, SL, SM, and SN. With each ascending letter, the performance of the engine oil generally improves over the previous grade. 4. Although SN-grade engine oil performs well, it is best to use the grade specified by the engine. If the vehicle is frequently driven in congested urban environments, using a higher-grade engine oil can be more environmentally friendly.

5

3

Share

In which province is Changan Automobile Factory located?

What is the difference between coating agent and waxing?

Are Engine Guards and Chassis Armor the Same Thing?

How to Replace the Battery in a Ford Edge Car Key?

Should coolant be added when it is low or completely drained and refilled?

Which is larger, the intake valve or the exhaust valve?

Is SN engine oil fully synthetic?

How to Check Tire Pressure Monitoring in a Car?

Will a Car Fire Extinguisher Explode If Left in the Vehicle?

Does the car charge the battery when starting in place?

What is the difference between Volkswagen Tiguan L National V and National VI?