Is It Serious If a Little Antifreeze Is Added to the Engine Oil Tank?

1 Answers
GrahamLee
07/30/25 4:35am
If antifreeze is mixed into the engine oil, a small amount may not cause significant issues, but a large quantity can lead to adverse effects. It can easily cause the engine oil to emulsify, disrupt its structure, impair lubrication, and consequently accelerate engine wear, potentially leading to engine damage. It is advisable to drain the contaminated oil as soon as possible and refill with new, standard-compliant engine oil. How to Choose Antifreeze: The basic indicators of antifreeze are its freezing point and boiling point. On the market, antifreeze is available in several specifications with freezing points such as -15°C, -25°C, -30°C, and -40°C. Generally, it is best to choose an antifreeze with a freezing point at least 10°C lower than the lowest temperature in your region. How to Determine If Antifreeze Is Lacking: Observe the antifreeze warning light on the dashboard. If it lights up, it is likely due to a lack of antifreeze, though it could also be caused by excessively high cylinder temperatures. Check the antifreeze reservoir. If the fluid level is below the minimum mark (MIN), do not continue driving and add antifreeze promptly. Check the water level scale on the antifreeze bottle. The normal antifreeze level should be between the maximum and minimum marks. To determine if antifreeze is lacking, observe the scale. If the antifreeze level is below the minimum mark, it indicates a shortage.
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