That will depend on the mileage you're getting and the calibration of your guage. You can get a reasonably close idea about how much fuel you have left by filling the tank when the light comes on and subtracting that amount from the tank capacity. On my Toyota, the light starts going on and off when I have about a gallon and a half (6 liters) left and stays on once there is less than a gallon (4 liters) left.
Don
|