M52 +255,000 miles On fast left handers on track my oil light flickers. I overfill slightly. That didn't cure it. Thought it might be a cracked oil suction tube. Replaced that. Still flickers on left handers. Next I'm going with a baffle in the oil pan. But today at a light my oil light started to flicker at idle Rev it up, light off. Checked oil level, it's fine. So 2 things left. Oil pump or oil sender unit. Sender will be next. Any other suggestions?