^^This and be careful what you do, because the higher you put it in the system (like the rad hose/ tank) if you get a slow leak say, overnight, the gauge will never respond before the engine is overheated, because the sender probe will be high and dry
Correct, DO NOT put it in the radiator hose- not just because it may be "high and dry", but you will also be on the wrong side of the thermostat and will never give you a true reading. Recipe for disaster.
