Hey guys
On the way to work this morning I was sitting at the lights and noticed that the temp gauge was higher than normal, not into the red but up to the line before the red. I did have the heater cranked up full, when I drove between the next set of lights it went down a bit then while idling it crept up again. I turned the car off and on again it it drop then back up again.I did watch it fluctuate up and down quite quickly at one point. Once I got moving it started to drop and by the time I got to work it seemed ok. Any ideas on whats happening, Could it be air trapped in the system? The water level seems fine, hoping not head gasket related!
P.S
It has a new thermostat and radiator (well about 10 months old)