1996 Ford F150 Owner's Manual - Page 310

Fuel filler door Opening the Fuel Filler Door To open the fuel filler door of your vehicle, just insert your finger in the divot and pull the door open all the way. Removing the fuel cap The proper instructions for removing the fuel cap are as follows: u Unscrew the fuel cap by exerting pressure on the plastic lock bar and rotating the fuel cap counterclockwise. u Turn the fuel cap 1/2 to 3/4 of a turn until a hissing sound is heard. Wait until the hissing sound stops and then continue rotating counterclockwise to remove the fuel cap. removal instructions and use caution. Such caution will minimize the possibility of fuel spraying during removal of the fuel cap. u Make sure that you follow the above fuel cap To replace and secure the fuel cap; place it in position and rotate it clockwise until it clicks (ratchets). Doing so will not damage or break the fuel cap. The ratcheting mechanism allows the fuel cap to be sealed without overtightening. 311