Thermo Gauge on 02 3.0D Hilux

G'day all,

I have just bought a 02 standard efi diesel Hilux, and have noticed that the thermostat gauge is sitting on halfway once the engine has been running for a while. I have owned cars that have there guauge normally sitting right down on Cold all the time. Can any one who owns a similar model tell me is this the normal spot that it sits at or should it normally sit rigt down on 'C'? Stupid question maybe but better safe then sorry.