I have a 99 gt THe car runs great but when I first start it up the change oil light comes on for about five minutes and then goes of. I had changed my oil 2 times now. Once I start driving the car for about 20 min at a light or idle the oil light comes on but once I pull off the the goes right off as soon as I hit the gas. The motor doesnt make any noise and I dont have any lack of power or hesitation when the light comes on The only thing I did notice is that sometimes at a light I can smell burnt oil. Any idea what could be the problem?