Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › 2003 gmc somona › 2003 gmc somona March 9, 2012 at 11:00 am #438831 dreamer2355Participant I agree with Eric. If the oil is being lost that severely, something is not right. I would send it back to the place that installed/rebuilt the motor to see exactly what is going on.