What is the pink liquid leaking under the car?

[LaMiguel]

The pink liquid leaking under the car is antifreeze. To maintain low temperatures in winter and allow the car to continue operating in cold conditions, antifreeze agents are added to the engine coolant to lower the freezing point, preventing the cooling system from freezing in low temperatures. Antifreeze contains non-toxic, water-soluble dyes, which differentiate it from ordinary cooling water. This not only makes it easier to detect leaks in the car's engine cooling system but also helps monitor changes in the antifreeze's pH level. Additionally, it serves as an indicator for acidity changes, acting as a guide for users when adding or replacing the fluid. Reasons for antifreeze leakage: 1. Sealing issues in the cooling system—poor sealing at the connection points between the antifreeze reservoir and the radiator can lead to leaks. 2. Pipe problems—aging or cracked pipes may cause antifreeze to leak. 3. Radiator issues—rust in the radiator can result in antifreeze leakage. Leaks typically occur around the radiator, so check for fluid around the radiator's exterior and pipe connections. If a significant amount of antifreeze leaks, the engine temperature may rise, triggering a coolant temperature warning on the dashboard. In such cases, prompt inspection and repair are necessary to prevent damage.