Umm. A GF years a go who thought she knew everything...
We were going around a corner and her oil light came on so I was all OMG the oil light etc. She put on a voice that was just short of calling me stupid and informed me that oil lights that come on occasionally (corners for instance
) means some time or another you need need to top up the oil. When the oil light comes on and stays on it means next time you get gasoline you need to get oil too.