What is the normal pressure for a car refrigerant charging gauge?

[BrynleeFitz]

When adding refrigerant to a car, the low-pressure side should be between 1.5 to 2.5 kg, and the high-pressure side should be between 13.5 kg to 15.5 kg. The car's air conditioning system requires refrigerant, and it should be regularly replenished. Otherwise, the car's air conditioning may experience slower cooling speeds and reduced cooling efficiency. Here are some important points to note when adding refrigerant to a car's air conditioning system: 1. Before vacuuming, completely replace any refrigerant that is not of the same type, as mixing different types can lead to poor performance. 2. When replacing air conditioning components such as the compressor, high and low-pressure pipes, or the dryer, ensure the pipe openings are sealed. 3. Before adding refrigerant, check for leaks, replace any damaged sealing rings, inspect the amount of refrigerant oil, and add more if necessary. 4. Follow the specified refrigerant quantity, which has a range of + and - values, and avoid adding too much or too little. 5. Pay attention to the type of refrigerant, as there are differences between R12 (Freon) and R134A (environmentally friendly refrigerant).