Dont know if this is the right place
#1
#2
Junior Member
Join Date: Feb 2015
Location: Wisconsin
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Im not sure what it is but it appears to be metallic. I would drop the pan again after a few thousand miles, if its not doesnt appear a second time I wouldn't worry about it. If its an older motor, the previous owner could of added Restore. That stuff has zinc in it and other stuff to fill in scratches in the cylinder walls. Some could has accumulated in the bottom of the pan
#4
Senior Member
Possibly bearing material?