How to Properly Replace Antifreeze?

[McGideon]

Correct method for replacing antifreeze: 1. When replacing antifreeze, be cautious when opening the cap. To prevent burns, use a thick cloth to cover it; 2. During the replacement process, ensure the water pump is running to fully drain the system. Then insert a water hose into the upper inlet for flushing. At certain times, you may need to start the engine to circulate the water flow, thoroughly clean the system, and drain it again; 3. Tighten the lower outlet, pour in new antifreeze, and after filling it up, start the engine to circulate the fluid. Sometimes, you may need to increase the engine speed slightly before topping it off. Antifreeze is a coolant containing special additives. Its composition includes freezing point depressants, corrosion inhibitors, antifoaming agents, dyes, mildew inhibitors, and buffers. It is primarily used in liquid-cooled engine cooling systems. Antifreeze offers excellent performance in preventing freezing in winter, boiling in summer, and protecting against scale and corrosion year-round.