Quote:
Originally Posted by Michael9218
The oil in your crankcase is not under pressure, or very low pressure, by design. This is why you have crankcase ventilation. The oil in the oil passages is under pressure, but not much of it is in the passages at one time.
Your oil is at it's highest temp in the pan, not lowest. The oil drops into the pan after servicing the bearings. From there the pump sucks it up, sends it out through the cooler and then back into the motor to the bearings.
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Part of the oil system is under pressure as there is an idiot light to show if it loses pressure.
The highest temperature is where the heat is produced, not in the pan. I think the oil at the piston rings it is much hotter than in the pan.