What are the precautions for replacing antifreeze?

Drain before replacing antifreeze, drain the old antifreeze, and fill the antifreeze replenishment tank with fresh water. Clean the inside. After idling for 3~5 minutes, you can clean the water circulation, so you can add new antifreeze.

When adding antifreeze, pay attention to the location of adding antifreeze. There will be some air in the cooling system, and the coolant will drop because of the need to exhaust air. It needs to be added twice until the antifreeze is added to the right position.

Avoid mixing different brands of antifreeze, and remember to add antifreeze of the same brand and model, otherwise it will easily lead to chemical reactions and even precipitation and bubbles.