Guide: Lowering engine fan kick in temperature

[Niall]

But the point I am making is, you say having them going full chat can cause it to run too cool. Surely more air displacement is caused from driving at 70mph. With a properly functional thermostat, leaving the fans on constantly shouldn't make a difference? In terms of running too cold that is..

Well as i said, i dont know the full physics of it but i know with mine, it sat at a steady 60 during the winter with the fans on full chat. plug them back in and it was at 75 which is still a bit low (due to the thermostat) but much better.