Hi Ian. After an italian tune up and you leave the engine on tickover for a min or so does the fan come on. Mine has only come on once and never since i put a few bottles of the water wetter in it.The gauge when warm the needle sits two notches down from the centre of the gauge summer or winter extreme heat or snow heater on or off. The oil gauge drops off dramatic on tickover when warm on the series1. They all do that sir but the first time you notice is a bit of a shock. Em