Can Antifreeze Be Added Directly?

1 Answers
MacKayden
07/29/25 3:10pm
It is not recommended to add antifreeze directly. Before adding antifreeze to a car, the engine cooling system should be thoroughly cleaned, especially during seasonal transitions when the antifreeze level needs to be checked. If the antifreeze is insufficient, it should be replenished promptly. Cleaning before adding antifreeze is mainly to prevent chemical reactions between scale in the engine and the antifreeze, which could cause the scale to detach and affect the normal performance of the antifreeze. The car's cooling system is crucial as it primarily serves to dissipate heat from the engine and provide warm air for the air conditioning. Antifreeze generally needs to be replaced every two years. If a shortage is noticed before the two-year mark, you can top it up with the same color and brand of antifreeze, preferably into the reserve tank. If the reserve tank is empty, it is advisable to check for possible leaks.
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