Middle Tank
WARNING: This page is about a different car, the 2003 Ford Econoline. However, it is still accessible from the selected car via links, so may be relevant.
Disconnect negative battery cable. On vehicles with dual batteries, see DUAL BATTERIES under MISCELLANEOUS. Remove rear plug (vapor valve location on gasoline vehicles) and insert hose from 100-Gallon Diesel Fuel Hand Pump Storage Tanker and remove the fuel.