The shelf life of a Fix A Flat can is typically around two to three years from the date of manufacture. This timeframe can vary based on storage conditions, such as temperature and humidity. It is essential to store the can in a cool, dry place and to avoid extreme temperatures, as exposure to heat or freezing conditions can affect its performance. To determine the exact expiration date, one should check the can for the printed manufacturing or expiration date. If the can is past its shelf life, it is advisable to replace it to ensure reliable performance in case of a tire emergency. For further details, it could be beneficial to visit the Fix A Flat website for the most current information on product specifications.