I'd also do a coolant pressure test to see if the pressure is rising above normal, and look see if there is anything showing up in the coolant. Hopefully, the seals at the bottom of the wet sleeves are not leaking (or worse). BTW, I did have discoloration of the oil in my most recent D which had set for 5 years. After changing the oil,the problem has not reoccurred, even after 2 additional oil changes. Woody __________________________________ Discover Yahoo! Find restaurants, movies, travel and more fun for the weekend. Check it out! http://discover.yahoo.com/weekend.html To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/