I used to have a Dodge Daytona that leaked around the valve cover. It was mainly due to the rubber gasket shrinking over time. I used to have to check them and tighten them about every other oil change. It could be the same issue with the oil pan. Just a thought.

 

They often recommend replacing the oil drain plug seal with every oil change, but I only do it if it leaks. You should be able to get a new o-ring or nylon washer for it from the dealer pretty cheap. If you snugged up the pan bolts, they should stay tight from here on out but I'd double check them a few times just to make sure.

 

Try bars leak it work on all my cars.

 

A long time ago my oil pan was leaking too. I just took it into the dealer for warrenty and they fixed it. all they did was re silicon the pan. Next oil change you do change the oil plug gasket. If you don't want to have to change it all the time get a copper gasket.

 

I'd get back underneath, take the bolts out one at a time (to avoid having to do another oil change), put on some LocTite and torque them back in. That will help prevent you from having the same problem later, as the bolts shake loose again.

 

If you do this, make sure to use the blue loc-tite. They are small bolts and the red or green loc-tite would likely make them permanent or cause them to break when/if they need to be removed.