
03-13-2016, 06:12 AM
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CC Member
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Join Date: Apr 2009
Location: Little Rock area,
AR
Cobra Make, Engine: ERA Street Roadster #782 with 459 cu in FE KC engine, toploader, 3.31
Posts: 4,533
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Well - multi-viscosity oil is supposed to behave like a lighter weight oil at start up while cold and then as it heats up, behave as a heavier oil. So, makes sense it would drain more thoroughly when cold and thinner - right?
Not!  Oil obviously continues to drain down slowly over time - probably from the galleries, oil pump, heads, etc.
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