In a message dated 98-11-06 18:03:53 EST, you write:
<< The residue is probably lead from the leaded gasoline that the car was born
to ingest. This is the reason that it is advisable to change the oil when
the engine is heated to normal operating temp. before draining the oil. The
warm oil suspends the debris and contaminates and allows it to drain out.
Tetraethyl lead has a habit of washing into the pan from the cylinder walls
and ending up in the bottom of the oil pan since it is a heavy metal
derivative.
>>
Hi,
When you think about how many moving parts are in an engine, and how times
those parts push, pull, pump, spin, crank, slide, whirl, and so on, it's no
wonder that there isn't some kind of goop sitting at the bottom of the oil pan
after years of good use. No matter what kind of oil you're using, there's
going to be wear when there's friction. If the engine seems to be working
fine, and there's nothing obviously wrong with the engine, I'd be inclined to
clean out the pan, put on a new gasket, reinstall it with fresh oil and
filter, and off you go again....
Just my $.02
Scott Helms
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