How to Replace the Antifreeze in a Car?
2 Answers
Check for any signs of leakage at the connections of the radiator, hoses, and other components. After confirming there are no leaks, open the filler cap of the reservoir or the radiator cap to allow the coolant to drain more quickly.
Last time I changed the car's antifreeze by myself, the process went pretty smoothly. Let me share the details. First, let the engine rest for a few hours to cool down for safety. I wore rubber gloves to avoid burns. Located the radiator drain valve under the car, unscrewed it to drain the old fluid into a plastic basin. Remember not to dispose of old antifreeze improperly—I took mine to a recycling center. After draining, flushing the pipes with clean water helps prevent sediment buildup. Then, refill with new antifreeze, making sure to check the type and avoid mixing colors—my car uses standard green. Slowly pour it into the radiator up to the Max line, start the engine for a few minutes to circulate, and top it off after bubbles emerge. The whole process took just half an hour—saving money and preventing freezing. Check the level every six months for best results, and don’t forget to dispose of old fluid responsibly!