synthetic oil

[ascher@domain.elided]

barry wrote...."Synthetic oils should not be used in engines that have
clocked up the miles (or
kilometres)."

i've heard this before.  why is this?  i know synthetic has a tendency to
leak from areas not prone to leak with standard organic oil, but is there
more to it than this?

ascher
91 164L (synthetic)
91 164S (organic, but considering synthetic)
78 spider (semi-sythetic)
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      ascher@domain.elided
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