How Much Antifreeze Should Be Added?
2 Answers
Generally speaking, antifreeze is usually added in the amount of 5 to 6 liters, divided into two additions. Some vehicles may require replenishment after driving three to four kilometers, as antifreeze naturally depletes over time. However, there are no strict regulations on the exact amount to be added for each vehicle, as it depends on the specific condition of the car. Below are some precautions regarding the replacement of new antifreeze: 1. Draining the antifreeze. When the engine is cold, first open the reservoir cap, then unscrew the radiator drain plug. 2. Cleaning the cooling system. After draining the antifreeze, it is generally necessary to flush the cooling system with clean water to remove scale and impurities deposited in the pipes. This prevents residual old antifreeze from contaminating the new antifreeze, which could degrade its performance. If possible, use a machine to thoroughly clean the cooling system. 3. Adding new antifreeze. When the antifreeze level is close to the upper limit, start the vehicle for about 5 minutes to allow the antifreeze to circulate. The fluid level in the reservoir will drop; then, turn off the engine and add more antifreeze up to the upper limit mark. Restart the vehicle and loosen the clamp on the upper radiator hose to release any trapped air in the system.
How much antifreeze should be added? After years of driving, I've summarized a method: There are two lines on the coolant expansion tank, and the standard position is between Min and Full. Adding to that point ensures it won’t overflow or be insufficient. Remember to always check when the car is completely cooled, such as the next morning before starting, and never open the cap when the engine is hot to avoid scalding from spraying. Overfilling can cause the liquid to expand and overflow at high temperatures, wasting resources or even corroding other components; too little can lead to engine overheating or freezing in winter, damaging the radiator. I recommend using a 50% antifreeze and 50% distilled water mixture for stability and cost savings, though some brands offer pre-mixed options for convenience. Check it once every season, and clean the dust around the tank cap for safety. Regularly replacing the antifreeze every two to three years is crucial for extending engine life.
