Thanks Jimmy, Fazool, and Precopster for the good advice. I'm hoping that it does turn out to be caused by just lack of driving. I think the owner does drive it only about a mile a week and probably does idle for a long warmup. I'm not seeing oil in the coolant overflow reservoir like I had seen in ...

I'm being offered a 1996 960 wagon with 113,000 miles and not sure if it's going to be more trouble than it's worth. It's an original owner car belonging to a very old couple who did regular maintenance but car has been sitting alot the last 5 years. It drives fine but I notice that the oil on the d...