[QUOTE]Originally posted by atomarc:
[QB] waldo53,


Right now, there is absolutely no reserve, the system is operating at max!


We don't know that, do we? It's only running at max if the thermostat is fully open. If the fan, radiator, water pump, etc. are all doing their job, the thermostat will regulate the temperature, by how much it opens up, even if the fan is on all the time. I'm not saying that running an electric fan continuously is a good idea, I wouldn't run one that way, but my old mechanical fan runs continually and once the ol' bolt warms up, it stays a constant temperature. Now, when the weather warms up, he's pulling a load or going up a steep grade and the thermostat opens all the way, and if the temperature guage starts climbing, then "Houston, we gotta problem" and he would be operating at max.