Can Antifreeze Be Added Directly?

1 Answers
OGriffin
07/29/25 9:03pm
It is not recommended to add directly. Before adding antifreeze to a car, the engine cooling system should be thoroughly cleaned, especially during seasonal changes when the antifreeze needs to be checked. If the antifreeze is insufficient, it should be added promptly. Cleaning before adding antifreeze is mainly to avoid chemical reactions between scale in the engine and the antifreeze, which could cause the scale to flake off and affect the normal performance of the antifreeze, or even clog the water pipes in severe cases. Methods to determine if antifreeze is low: Observe the antifreeze warning light on the dashboard. If it lights up, it is likely due to low antifreeze levels, though it could also be caused by excessively high cylinder temperatures. Check the antifreeze reservoir. If the level is below the minimum mark (MIN), do not continue driving and add antifreeze promptly. Check the water level markings on the antifreeze tank. The antifreeze level should normally be between the maximum and minimum marks. If it is below the minimum mark, it indicates a shortage of antifreeze. Methods for selecting antifreeze: The basic indicators for antifreeze are its freezing point and boiling point. On the market, antifreeze comes in specifications such as -15°C, -25°C, -30°C, and -40°C. Generally, it is advisable to choose an antifreeze with a freezing point at least 10°C lower than the lowest temperature in your region.
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