my uncles 2.5 v6 '97 vectra cdx is showing the warning oil lack, yet it's not burning oil, sounds smooth, however it is leaking very very slightly from the sump about 1 drop a week.
the diagnostic screen is showing the message 'oil lack' as soon as you start the car. I disconnected the battery for 1hour then started it up and the warning still didn't go away.
could this be a faulty sensor? major service was carried out (not by vaux) but that warning did not go way.
any idea on what that could mean?