I have just set this up by plugging in an obd2 and everything is working apart from the fuel range being displayed. Could anyone suggest how through the system settings in RealDash I could get this to be displayed? I am not technical enough to know the settings sorry. I have tried pointing it to ODB2: Fuel level
It may be that your vehicle does not send fuel level info on standard PID. See this FAQ post for more info:
Fuel level is always empty - General / Frequently Asked Questions - RealDash Forum