I guess the other side of this is, what is necessarily wrong with using
lower weight oil, even if pressure drops, if the flow remains that same.
That is, the bearings would still be lubricated, right?
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On 10/23/99, Andy Webster wrote:
>The oil pump provides flow...not pressure.
>Pressure is provided by the resistance to the shearing forces applied as oil
>is forced through small spaces, such as between bearing surfaces, through
>filter media and down small galleries. So as bearings wear and the spaces
>get bigger the oil flows through with less restraint,like sucking your
>thickshake (or partially gelatinated non-dairy gum based beverage) through a
>wider straw.
>So really thick oil is bad news for a tight tolerance (new) engine and
>really thin oil wont build any pressure in an old worn one.
>Andy
Jeffrey H. Boatright, PhD
Senior Editor, Molecular Vision
http://www.molvis.org/molvis
"Seeing the Future in a Very Tiny Way"
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