Inside of an engine dont see too much water
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Yea, when at operating temp the water evaporates. I'll go along with this, BUT
Shut said engine down when it is 180-210 degrees on a nice humid 20 degree night, let sit. What will form on the inside where the air is warm while outside is cold? Condensation, A.K.A. water, where does it go, straight into the oil pan, where is the pump pick up, in the bottom of the pan. Run an engine with a blown head gasket, broke head bolt or stud, crack a liner, rebuild an engine and screw up the liner protrusion, nick a liner o-ring during install, pop an oil cooler, crack a water cooled turbo housing, all these are just a few of the points of entry, excluding the intake. Most of the time if small enough, the internal leak goes somewhat unnoticed, till you take a sample of the oil for used oil analysis, 10,000 miles or more later, oh look, it's got coolant in the oil. By this time who knows how much water/coolant has passed through the oil, seeping in and evaporating, repeating over and over. High sodium content is a indicator of coolant in oil. I can always get into how much water comes into through the air induction system, heating and cooling and condensation of the charge air and such. Relative humidity, temperature, dew point, super cooling and a myriad of other formulas
Engines are not by any means air tight or water tight, air has water in it, so technically, yes, engine oil sees more water than you might think..
There are alot of measures, like PVC, crank case filters and others in place to see that the water vapor is expelled during normal operation, so to 99.9% of the population, the water goes un-noticed.