How to Properly Replace Car Antifreeze?
2 Answers
Before completely replacing the antifreeze, thoroughly inspect all pipes for any signs of leakage or cracks, with special attention to the five-way water pipe. Drain the old antifreeze and flush the liquid channels with clean water until the water runs clear. After one hour, add the new antifreeze through the radiator hose.
I've been driving for over ten years, and changing antifreeze is a routine task. To do it correctly, safety comes first. After parking the car, wait until the engine cools down completely, or the hot liquid can cause burns. Then open the hood, locate the radiator drain plug—usually at the bottom of the radiator—and use a wrench to loosen it, allowing the old fluid to slowly drain into a container. Never pour it on the ground, as it pollutes the environment. Once drained, if there's sediment in the system, you can flush it with clean water a few times, but be careful not to introduce too much water. Next, tighten the plug, pour in new antifreeze (just follow the manual to choose the right type—don’t buy random brands), start the engine, and let it idle for a few minutes to release air bubbles. Then check the fluid level to ensure it's between the min-max lines. Older cars are prone to issues, so remember to change the antifreeze regularly—about every two years—or corrosion can damage the radiator, leading to costly repairs. I always do it this way to save on repair bills.
