Does DEF really expire that quickly?🤔 Not if it’s stored properly. DEF can have a shelf life of up to two years when kept in the right conditions. Keep it sealed, stored in a cool place, and out of direct sunlight to help maintain its quality. A little proper storage can go a long way. 💪 #BlueDEF #Diesel #DEF #DieselTrucks #TruckMaintenance