About a 2 months ago I had my oil changed and for about a day afterwards I had a few drops of oil on the driveway as usual than it would stop. But this time the oil drip hasn't stopped (after 2 months). I took it back to the service station who did the oil change and they checked it out, cleaned up any oil residue, checked around the oil filter, plug and saw nothing so they told me try this and see if it doesn't drip anymore. A few days later it started again, took it back checked it out again and couldn't find the problem. They asked if I could leave it with them for a day or two to further look into the problem but I couldn't leave it that particular day. It's only after I've driven the car and park it overnight. A drop or two of oil, not a lot. Has anyone experienced this?