Blackwater 7/19/2010Well based on your question its "Around the fuel cap" so i believe the cap seal is the reason why you are leaking oil around that area, you have to replace the oil cap itself. The internal pressure from the engine when its running will cause it to leak in that area.
Lucky for you if this is indeed the solution because what happened to me years ago was i saw engine oil creeping from the cylinder head (the gap between the block), i had no choice but to replace the cylinder head gasket and do a TOP Overhaul since i will be removing the head anyway, kinda pricey.
HouseCallAuto 7/19/2010Verify that the PCV valve and vacuum hose are working, no leak and replace the PCV valve anyway because it is like under $10. Also, there is an O-Ring that may be hard and shrunken at the oil cap. This could also cause it.