2002 Subaru Impreza Owner's Manual - Page 132

Instruments and controls NOTE about 4.0 U.S. gal. (15 liters, 3.3 Imp. gal.). J Temperature gauge HG3016AA You will see the "FUEL DOOR p" sign near the fuel gauge. This indicates that the fuel filter door (lid) is located on the right side of the vehicle. B Low fuel warning light The low fuel warning light comes on when the tank is nearly empty [about 2.3 U.S. gal. (9.0 liters, 1.9 Imp. gal.]. It only operates when the ignition switch is in the "ON" position. HG3008BB 1) Normal operating range The temperature gauge shows engine coolant temperature when the ignition switch is in the "ON" position. The coolant temperature will vary in accordance with the outside temperature and driving conditions. We recommend that you drive moderately until the pointer of the temperature gauge reaches near the middle of the range. Engine operation is optimum with the engine coolant at this temperature range NOTE This light does not go out unless the tank is replenished up to an internal fuel quantity of 3-8