How to Add Refrigeration Oil to the Air Conditioning Compressor?

How to Charge a Car Battery with a Charger?

Method for charging a car battery: Connect the positive terminal of the battery to the positive terminal of the power source, and the negative terminal of the battery to the negative terminal of the power source. Below is a related introduction on how to charge a car battery: 1. First, use the initial charging current until bubbles are released from the electrolyte, and the single-cell voltage rises to 2.3—2.4V. Then reduce the current to half of the initial charging current and continue charging until the electrolyte releases intense bubbles, and the voltage remains stable for 3 hours. 2. The total charging time is approximately 45—65 hours. The temperature should be controlled between 35—40°C. If the specific gravity of the electrolyte does not meet the required standard after the initial charging, adjust it using distilled water or an electrolyte with a specific gravity of 1.4. After adjustment, charge for another 2 hours until the specific gravity meets the standard. 3. New batteries often do not reach their full capacity after the first charge, so a discharge cycle should be performed. Discharge at a 20-hour rate (i.e., discharge with a current equal to 1/20 of the rated capacity until the single-cell voltage drops to 1.75V), then recharge until fully charged. If the capacity is still below 90% of the rated capacity after one charge-discharge cycle, perform another charge-discharge cycle.

5

3

Share

Is Plastic Renovator Harmful to Car Paint?

Plastic renovator is harmful to car paint. Although car renovators do not have substantial drawbacks, care must be taken during application to avoid contact with the painted areas. In theory, automotive plastic renovators possess a certain level of corrosiveness, specifically formulated for plastic components. The downside is that they may cause issues such as paint fading, yellowing, and cracking. The relevant details about plastic renovators are as follows: Introduction 1: The main component of plastic renovators is a reducing agent. Plastic products tend to turn yellow and age over time, affecting their appearance. Plastic renovators can restore the original color of yellowed plastic surfaces. Introduction 2: This product also has a significant cleaning effect on general dirt on plastic surfaces. It is non-toxic, harmless, and pollution-free, making it particularly suitable for renovating and cleaning items such as washing machines, refrigerators, water dispensers, computers, copiers, telephones, plastic doors and windows, and plastic pipes.

8

3

Share

How Many Points Are Deducted for Launch Control Start?

Performing a launch control start at a traffic light is considered a traffic violation and will result in a fine and a deduction of 3 points. As a racing technique, launch control is recommended to be attempted on closed roads or race tracks. Using launch control on public roads where traffic is operational is considered a dangerous behavior. The following are related introductions to launch control: Introduction 1: Launch control is an acceleration technique that uses the transmission to adjust the engine speed to the output platform of maximum torque, allowing the engine to deliver maximum torque from the moment of takeoff, achieving the best acceleration. Introduction 2: In various famous acceleration competitions, almost all racing cars use methods such as increasing turbo pressure, using semi-slick tires, and filling with racing fuel. Additionally, one essential acceleration technique is launch control. Introduction 3: Another technique derived from this is the burn-out start, where excessive throttle is applied to make the rear wheels spin, producing a large amount of smoke.

1

0

Share

Can a car be driven without insurance?

Compulsory traffic insurance must be purchased, while ordinary commercial insurance can be freely chosen whether to buy or not. It is recommended that a car without compulsory traffic insurance should not be driven on the road. If caught by traffic police, the driver will face three penalties: first, the vehicle may be impounded; second, the compulsory traffic insurance must be back-paid; third, a fine of twice the premium of the compulsory traffic insurance will be imposed. The relevant introduction of compulsory traffic insurance is as follows: Introduction 1: The full name of compulsory traffic insurance is "Compulsory Motor Vehicle Traffic Accident Liability Insurance". It is a mandatory liability insurance provided by insurance companies to compensate for personal injuries, deaths, and property losses (excluding the vehicle's occupants and the insured) caused by the insured motor vehicle in a road traffic accident, within the liability limits. Introduction 2: Compulsory traffic insurance is China's first mandatory insurance system implemented by national law.

7

2

Share

What are the reasons for a car compressor not working?

There are several reasons why a car compressor may not work: Reason 1: Severe internal wear of the compressor leads to its inability to function properly. Since the compressor plays a crucial role in the air conditioning system, its main tasks are compressing and transporting refrigerant, which causes the compressor to operate at high speeds for extended periods. This is one of the reasons why the compressor may fail to work properly. Reason 2: The compressor is primarily used to compress and transport refrigerant. If there is an issue, check for any refrigerant leaks. If there is no compression or transportation of refrigerant, the compressor naturally won't work. Reason 3: A fault in the electrical system can effectively prevent the car's air conditioning compressor from working properly. Therefore, the owner can check if the circuit is unobstructed and inspect the temperature sensor and solenoid valve.

6

0

Share

What are the differences between China 5 and China 6 emission standards?

The differences between China 5 and China 6 emission standards are as follows: Different emission standards: China 6 emission standards are more than 30% stricter than China 5. Excluding the influence of working conditions and testing, gasoline vehicles' carbon monoxide emissions are reduced by 50%, total hydrocarbons and non-methane hydrocarbons emissions are reduced by 50%, and nitrogen oxide emissions are reduced by 42%. Different implementation times: The China 5 standard was implemented nationwide on January 1, 2017, as the fifth stage of national motor vehicle emission standards. China 6 was implemented starting from July 1, 2019. Different principles: During the China 5 phase, diesel and gasoline vehicles had different emission standards. However, China 6 adopts a fuel-neutral principle, meaning that regardless of the fuel type, the emission limits are the same. Different issuing departments: The China 5 standard was issued by the Ministry of Environmental Protection. The China 6 standard was issued by the Ministry of Environmental Protection and the General Administration of Quality Supervision, Inspection, and Quarantine. Different letter representations: China 5 is represented by 'V', while China 6 is represented by 'VI'. Different monitoring requirements for plug-in hybrid electric vehicles: Compared to China 5, China 6 has improved monitoring requirements for plug-in hybrid electric vehicles, including energy storage systems, thermal management systems, brake regeneration, drive motors, generators, and other regulatory aspects. China 5 standard limits are as follows: Gasoline vehicles must not emit more than 1,000 milligrams of carbon monoxide per kilometer driven. Gasoline vehicles must not emit more than 68 milligrams of non-methane hydrocarbons per kilometer driven. Gasoline vehicles must not emit more than 60 milligrams of nitrogen oxides per kilometer driven. Gasoline vehicles must not emit more than 4.5 milligrams of PM (particulate matter) per kilometer driven. China 6 has two standards: China 6a and China 6b, as follows: China 6a standard limits: Gasoline vehicles must not emit more than 700 milligrams of carbon monoxide per kilometer driven. Gasoline vehicles must not emit more than 68 milligrams of non-methane hydrocarbons per kilometer driven. Gasoline vehicles must not emit more than 60 milligrams of nitrogen oxides per kilometer driven. Gasoline vehicles must not emit more than 4.5 milligrams of PM per kilometer driven. China 6b standard limits: Gasoline vehicles must not emit more than 500 milligrams of carbon monoxide per kilometer driven. Gasoline vehicles must not emit more than 35 milligrams of non-methane hydrocarbons per kilometer driven. Gasoline vehicles must not emit more than 35 milligrams of nitrogen oxides per kilometer driven. Gasoline vehicles must not emit more than 3 milligrams of PM per kilometer driven. Affected by the China 6 emission policy, although China 5 vehicles are not currently restricted in normal use, such as driving bans or license plate restrictions, their resale value will be significantly impacted. For truck owners, if they purchase a truck on loan for cargo transport, the vehicle's depreciation after repaying the loan is equivalent to the net profit earned during that period. A higher residual value means more profit for the owner. Therefore, from this perspective, China 6 vehicles, with longer service life and more road rights, have more advantages.

18

1

Share

How to Add Refrigeration Oil to the Air Conditioning Compressor?

How to Charge a Car Battery with a Charger?

Is Plastic Renovator Harmful to Car Paint?

How Many Points Are Deducted for Launch Control Start?

Can a car be driven without insurance?

What are the reasons for a car compressor not working?

What are the differences between China 5 and China 6 emission standards?

How Long Does It Take to Learn Driving Test Subject 3?

How to Check if ETC is Successfully Activated?

Where to Book Subject One?

What is the service life of BMW run-flat tires?