Does new antifreeze have an expiration date?

[McTravis]

Automotive antifreeze does have an expiration date. Generally speaking, the shelf life of antifreeze is two years. For long-life antifreeze, the shelf life can be longer, ranging from three to five years of continued usability. The specific duration should always be checked against the product's instruction manual. If the antifreeze has passed its expiration date but shows no signs of deterioration, it may still be used. Introduction to antifreeze: The full name of antifreeze should be antifreeze coolant, meaning it is a coolant with antifreeze properties. Antifreeze prevents the coolant from freezing in cold winter conditions when the vehicle is parked, which could otherwise cause the radiator to crack or the engine block or cylinder head to freeze and sustain damage. Functions of antifreeze: Antifreeze is a type of coolant containing special additives, primarily used in liquid-cooled engine cooling systems. It offers excellent performance characteristics such as preventing freezing in winter, boiling over in summer, and providing year-round protection against scale and corrosion.