An apparatus and method for distinguishing the correct type of fuel to be disposed in a vehicle (4) is provided. The apparatus includes an RFID tag (40) disposed on one of a vehicle (4) or a fuel providing means (2), and a radio receiving means (42) disposed on the other of the vehicle (4) or fuel providing means (2). A signal, indicative of a type of fuel, is emitted by the RFID tag (40) and compared with a predetermined radio signal stored in a storage means (41), and a warning is generated on the basis of a determination of correspondence between the detected radio signal and predetermined radio signal. The present invention therefore provides a safe and reliable system that removes or reduces human decision from a refuelling process, and ensures the correct fuel is provided to the vehicle (4).