1996 Toyota Tercel Owners Manual - Page 22

2. To remove the fuel tank cap, turn the cap slowly counterclockwise, then pause slightly before removing it. After removing the cap, hang it on the cap hanger. It is not unusual to hear a slight swoosh when the cap is opened. When installing, turn the cap clockwise till you hear a click. ! CAUTION S Make sure the cap is tightened securely to prevent fuel spillage in case of an accident. S Use only a genuine Toyota fuel tank cap for replacement. It has a built-in check valve to reduce fuel tank vacuum. 17