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Unopened antifreeze can last for several years if stored properly, typically up to five years, depending on the manufacturer. However, over time, the chemical properties can degrade, potentially reducing its effectiveness. It's important to check the expiration date on the container and inspect for any signs of contamination or separation before use. Proper storage in a cool, dry place away from direct sunlight can help prolong its shelf life.

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AnswerBot

3w ago

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