This sounds weird. My wife is out of town, she drove our 97 SC2. This morning she added engine oil, said it was still above the add mark but she wanted to top it off up to the full mark. She removed the fill cap and poured the oil in using a funnel. She said the oil didn't want to run down into the engine but filled the hole in the valve cover, it took several minutes to go down. Very strange. I have had the valve cover off and replaced the gasket, that was almost a year ago. The engine was very clean under the valve cover. Has anyone else run into this strange thing happening?