The hydrometer is available in the sale of related auto products. Regularly, before starting winter operation, for safety reasons, it is necessary to check the concentration of antifreeze, especially if pure water has been added occasionally.
1. Warm up the engine while driving until the upper radiator coolant hose is warm to the touch.
2. Carefully open expansion tank cap.
Attention! Do not open when engine is hot.
3. Draw coolant into the hydrometer and determine the density of the coolant from the float. In our latitudes, the liquid should not freeze at -25°C, in extreme cold at -35°C.
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