Tank Needle ( tank contents )

Hi people I have a Ford Escort Bj: 92 , 1,3 L with 60 Ps ; tank volume 55 L. Now I wanted to know how far the tank needle can go down, it says in the operating instructions that if it has arrived at red only about 8 liters should be in it, there is still a small white zone under the red zone. If the needle also goes in there or even down to under the white or is at the beginning of the white level already my tank LEER. A picture is included. Ps: Maybe I test it with a replacement gasoline canister, it interests me already. (hope it has done before 🙂