Last spring I asked about a sunroof issue for him and Oppo nailed the cause, so lets see what ideas you come up with for this issue.

Car seems to be consuming oil, ending up around a quart low at the service interval.

No Codes, no visible leaks or signs of underneath or on the block, no change in driving behavior and no intrusion into coolant.

He has owned it since new and I trust his ability to turn a wrench as he is rebuilding a 9-3, might be a Viggen I’m not sure, as a project.