What to Do If the Car Antifreeze Is Low?
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If the car antifreeze is low, you can add it yourself. You need to purchase antifreeze of the same color as the original or a universal type. If the colors are different, you must completely drain the original antifreeze before adding the new one. Different colors and brands of antifreeze may have different formula components. Mixing them may cause chemical reactions between the various components, which can affect the antifreeze's performance. Method for Replacing Antifreeze: Drain the old antifreeze, then flush the fluid channels with clean water. Add clean water to the antifreeze reservoir, then continuously pour water into the reservoir to allow it to flow through the engine cooling system. Start the engine and let it idle for 3 to 5 minutes to circulate the water. The water initially flowing out of the reservoir will have a faint pink color. Continue adding clean water until the outflowing water is clear. Note: Do not forget to disconnect the heater hose and drain the water from the heater core. After draining for about an hour, add the new antifreeze through the radiator hose. This allows the antifreeze to flow quickly into the radiator. Then, add another bottle of antifreeze to the antifreeze reservoir until it is nearly full. Start the engine and let it run for about 10 minutes. At this point, the coolant level will drop slightly as air is purged from the system. Add more antifreeze until the reservoir reaches the "MAXT" mark.