I recall reading some reference to a magnetic plug to catch small metal shavings - maybe it was the auto drain plug. Came across <A HREF=http://http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=2478207300&category=33613>this</A> reference on eBay to a magnetic sump plug, and wondered if the OEM plug is magnetised as well. Anyone know?