1996 Mercury Mystique Owner's Manual - Page 199

Servicing Your Mystique If the fuel filler door does not open when you push the release handle, open the trunk and find the override release on the right side. The override release is a handle which is marked with a fuel pump symbol. Open the fuel filler door by pulling on the handle. Fuel filler door release - manual override Filling the fuel tank The fuel door is outside the car on the passenger side near the back. To fill the fuel tank: 1. After opening the fuel filler door, remove the cap carefully and slowly by turning it counterclockwise 1/2 to 3/4 turn. If a hissing sound is heard, wait until it stops, then continue turning until the cap is free. RWARNING If the fuel cap is venting vapor or if you hear a hissing sound, wait until it stops before completely removing the cap. 203