Anti-freeze, also known as coolant, is a liquid that is added to the water in a car’s cooling system to lower its freezing point and raise its boiling point. This allows the coolant to remain in a liquid state at lower temperatures, preventing the engine from freezing and cracking in cold weather. It also helps to prevent the coolant from boiling and overheating the engine in hot weather. Anti-freeze typically comes in two types: ethylene glycol and propylene glycol. Ethylene glycol is more common and is more effective at lower temperatures, but it is also toxic and can be harmful to animals and the environment. Propylene glycol is a less toxic alternative, but it is not as effective at lower temperatures. Here are a few important tips to keep in mind when working with anti-freeze: Always use the correct type and concentration of anti-freeze for your car, as specified in the owner’s manual or by the vehicle manufacturer. Never mix different types or brands of anti-freeze, as this can cause chemical reactions and damage to the engine. Always wear gloves and eye protection when handling anti-freeze, as it can be toxic and cause skin irritation. Keep anti-freeze out of reach of children and pets, as it can be fatal if ingested. Dispose of used anti-freeze properly, following the instructions of the vehicle manufacturer and local regulations. In summary, Anti-freeze is a liquid that is added to the water in a car’s cooling system to lower its freezing point and raise its boiling point, preventing the engine from freezing and cracking in cold weather and from boiling and overheating in hot weather. It is important to use the correct type and concentration of anti-freeze, never mix different types or brands, wear gloves and eye protection when handling it, Keep it out of reach of children and pets, and dispose of used anti-freeze properly.