Hi i was driving to work in the morning when i noticed my oil pressure guage light is on so i babyd it to work,i came back after a couple of hours and started the car the lightt was not there but came back on after a min or so, the pressure guage still works and reads fine just wondering why it would turn on really getting me paranoid that somethings going to go wrong help really appreciated like has this happen to any1 or is it just a electrical fault???