cheers mate......
but if it was the head gasket i should have water in the oil or oil in the water or it should be using water but it's doing non of these. i have checked the thermostat and its o.k i've also flushed the heater matrix out and that was o.k, plus after the cars been running all of the radiator is the same temp. could it still be the headgasket ???? or anything else ?????