Pontiac G6 Oil Filter Housing Gasket. If the car sits overnight there might be oil on the ground the size of a quarter. Flat rate pricing based on labor time and parts.
If it's on the flange (block area) you'll need a paper gasket and a long allen socket to remove. I don't have the size in mind but i'm sure it's bigger than a 19mm. Flat rate pricing based on labor time and parts.