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Alright, new theory.
I get up this morning and check the oil -- as before, it is at the top of the crosshairs.
I run the engine for two minutes, and then shut it down without moving it. I wait two hours and check, and the oil shows almost 1/2 quart lower than it did!
I take the car out for a 30 mile run, then park it back in the same spot. I check it 20 minutes later, and it is at the top again!
My theory is that when the engine is shut down with the engine oil still cold, a small amount (maybe 1/2 qt) sticks up in various parts of the motor even after a significant time period. But, when run until hot, the oil thins out and all of it falls back to the oil pan when shut down. Kind of like what ChristianChevelle was saying, only I would take it a step further and note it is temperature (of the oil) dependent.
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