TDI Diesel Fuel Nozzle Adapter Volkswagen TDI Owners can prevent diesel nozzle/fuel filler neck mismatches. Designed to accommodate even outdated diesel fuel filling station pump nozzles the TDI Diesel Fuel Nozzle Adapter fits the Volkswagen fuel filler neck at one end, and, with an outsized diameter at the other end, allows diesel fueling from larger nozzles found at Semi Truck diesel fuel stops with outdated pumps Self contained in a sturdy carrying container. Includes complete instructions for use and non-latex, disposable gloves to help prevent skin contact with diesel fuel. VW part from a VW dealership