Managed to get home after nearly an hour limping along at 10mph I checked the oil after the car had cooled down and there seemed sufficient Oil in butput some more in. left overnight and checked the oil again no problems,but again once above 2k revs the Oil sensor kicked in. So what are my options? apart from the obvious sensor failure, what else could be at fault. The worst bit was when limping along there was a horrible sound from the rear as though something was greating. Oh there are NO oil leaks the undercarriage is completely dry. What kind of cost am I potentialy looking at to sort this,as I need the car for work, no other way to get there unless I want to spend 2-3 hrs on various buses.