Do not allow antifreeze to come into contact with exposed areas of the body or painted surfaces of the car. If any drops accidentally come into contact with the body, immediately wash them off with plenty of water. Antifreeze is an extremely toxic liquid, and even small amounts of it can be fatal if ingested. Never leave antifreeze in an open container or spilled on the garage floor - its sweet smell can easily attract children and animals. Eliminate leaks in the cooling system immediately as soon as you notice them.
The cooling system should be filled with a solution of ethylene glycol-based antifreeze in water in a ratio of 40:60, which will ensure its resistance to freezing at temperatures down to approximately -27°C. In addition, antifreeze increases the boiling point of the coolant, as well as (if it is of good quality) provides corrosion resistance.
The cooling system should be drained, flushed and refilled at regular intervals (see chapter Routine car maintenance). Old or contaminated antifreeze solution can easily cause serious damage and encourage rust and scale formation in the system. If possible, try to use distilled or clean rainwater with antifreeze. Tap water may be suitable if it is not too "hard".
Before adding antifreeze, check the condition of all hose connections, as antifreeze tends to leak through the slightest leaks. Under normal conditions, the engine does not consume coolant, so if its level drops, you should find out the reason for this and eliminate it.
The antifreeze mixture must be made in the correct proportions; adding too much antifreeze reduces the efficiency of the cooling system. If necessary, before filling, you can check the map of the rules for making a coolant mixture on the container with antifreeze. The hydrometer needed to check the coolant can be purchased at an auto parts store. Try to use antifreezes recommended by the car manufacturer.