Quote:
Originally Posted by CSG Mike
The 180 he is quoting is post-cooler. At 180F, at some point in the system, the oil is over 212F.
Additionally, you don't have to be above the boiling point of water to accelerate evaporation. Observe a pot of water on a stove, warming up. Note the increased evaporation (you can see the vapor!) as the water heats up, but before it is boiling. Also remember that with elevation and vacuum (e.g. negative crankcase pressure), you lower the vapor pressure and boiling point of water below (far below) 212F.
160F is enough heat to safely redline; this is the threshold used by virtually every manufacturer that uses a variable temperature based redline (BMW M cars, Lamborghini, Mclaren, AMG, etc.)
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that's different than boiling off water though.
180 to 200 is the typical "ideal" (depending on engine, oil, etc). In the winter I want it on the higher end because there is more condensation going down to -10 degrees than 90 degrees. It also depends on if you're taking long drives or (like I was) short drives from you apartment to class or the grocery store.