I thought Torque Pro has a calculated
fuel remaining from vehicle profile?

In addition, if your vehicle supports 012f
for fuel level, you could create a custom
pid based upon your vehicle’s tank capacity.

Then create a custom pid to multiply
the % by your tank capacity.

from main screen…

Menu>Settings>Manage Extra PIDs/Sensors

Menu>Add pid

Long Name: Your choice but must be unique
Short Name: Your choice used in displays
Mode/PID: leave blank
Equation: Val{Fuel Remaining (Calculated from vehicle profile)}*your tank capacity
(Note Val long name must match exactly).
Scale: x1
Units: your preferred units
Min: 0
Max: 100

etc.

or

Equation: Val{Fuel Level (From Engine ECU)}*your tank capacity

After creating a working pid go back to dashboard
and add display using the unique long name you
entered for new pid.

Hope this helps.

A divide by 100 may be necessary depending
on the form of the percentage value.

Edited.