Well, thats kind of hard to say. I know that if the oil fill was mounted on the valve cover like a Volvo or Nissan, I'd say yeah, kinda (more like an oil mist coming out mixed with a few drops here and there). But with Saabs, well at least the my C900 and NG900, having the oil filler cap nearly kills the engine. Never have I had oil gush out (nor any oil come out some to think of it). Its physically harder for the oil to get out when compared to a valve cover mounted filler in that with the Saabs the filler tube is about 1 ft long and narrow. Something just doesn't seem right.
Thats what Im thinking, scary, I have a aftermarket valve cover breather on, maybe thats it. Im thinking maybe piston blowbi. There was allot of oil, maybe half a liter of mobil 1 synthetic liberally coating the entire engine bay.