Can Antifreeze Be Used After 5 Years of Storage?

[VonJocelyn]

Generally, the shelf life of antifreeze is two years; long-life antifreeze has a longer validity period, which can range from three to five years. For specific details, check the expiration date on the packaging. Some car owners, who are not particularly meticulous about their vehicles and treat them more like workhorses, continue to use antifreeze even after it has passed its expiration date and has been opened for some time. As long as the antifreeze itself has not deteriorated, it can still be used without issues. If unsure, you can have a mechanic check its quality. When adding antifreeze, besides paying attention to its shelf life, you should also consider its boiling and freezing points. High-quality antifreeze typically has a boiling point around 110°C and a freezing point below -25°C, which are the main reasons why antifreeze provides anti-freeze and anti-boil functions.