Fastens and seals into the engine filler with three manufacturer specific adapters. Covering a large proportion of modern vehicles for Audi, Seat, Skoda and Volkswagen. Hands-free operation with no mess or spills. Fastens and seals into the engine filler with three manufacturer specific adapters Covering a large proportion of modern vehicles for Audi, Seat, Skoda and Volkswagen Hands-free operation with no mess or spills .