YOU SAID:

the car needs to be filled up with gas

INTO JAPANESE

車は、ガスでいっぱいにする必要があります。

BACK INTO ENGLISH

The car has to be filled with gas.

INTO JAPANESE

車は、ガスで満たされます。

BACK INTO ENGLISH

Vehicles are filled with gas.

INTO JAPANESE

車はガスで満ちています。

BACK INTO ENGLISH

Vehicles are filled with gas.