I just picked up my 86 Corolla today and noticed that when sitting in traffic the temp will slowly rise till about 3/4 of the way to the red part of the gauge. In a car park I watched the temp and took a look at the thermal fans and the fans do come on at about the 3/4 mark and then shut off when the gauge is reading 1/2.
My question is isn't this a bit too hot? Shouldn't the fans be comming on earlier and more often therefore keeping the temp more constant?