I know and understand what you are saying. My point is that perhaps the sensor can detect a drop in conductivity, if there is enough then the light flashes to warn you. Very much like how a temperature gauge can measure a range of resistance values from a sensor, they dont work as a simple on/off switch do they? But this is only a theory I came up with to explain how it might work if the tank sensor can measure antifreeze concentration.
Of course I might be wrong and it could be as you say, I have read posts from other respected forum members that the light will warn you about an incorrect antifreeze mixture. I havent seen it mentioned if it is supposed to warn you if there is too much antifreeze or too little, or both, just 'incorrect'
I didn't really want to turn this into an argument to be honest, so lets just leave it at that eh?
