Is antifreeze good in hot weather?

Antifreeze, primarily composed of ethylene glycol or propylene glycol, is designed to lower the freezing point of engine coolant and raise its boiling point, making it beneficial in hot weather. It helps prevent overheating by maintaining optimal engine temperatures and providing corrosion protection. However, it's essential to use the correct mixture of antifreeze and water, as too much antifreeze can reduce cooling efficiency. Always follow your vehicle manufacturer's recommendations for coolant mixtures.