Went and looked at a '98 S500 this weekend and when the salesman started the car I saw blue smoke out the tailpipe for a few seconds. The car has about 28K miles. Is there a common problem with these engines or ? The car had probably sat on the lot awhile - few days maybe at most. The car is Starmarked - but I imagine that if you bought the car and then brought it in and said its burning oil they'd tell you it was still within specs. Any thoughts would be appreciated.

TIA

Randy
'94 E500