Yes, you can refill AdBlue yourself, but it is important to use the correct equipment and to handle the fluid safely. AdBlue is typically stored in a separate tank on the vehicle, and the fluid can be purchased at many petrol stations, truck stops, and automotive supply stores. It is important to note that AdBlue is a very high-purity urea solution and can be corrosive to some materials and surfaces. Therefore, it is recommended to use appropriate protective gear such as gloves, safety glasses and use equipment that is specifically designed for AdBlue handling and refilling.