Kychucky

wife's 2000 S4 leaks oil and is smelly. I would assume its hitting the exhaust or turbos. Mech. just put on new valve cover gaskets. What is the next most likely leak spot to go after? It does not leak what I would consider to be 'bad'. Maybe have to put a bit in every 2 tanks of gas.

I know what I'm gonna have to do. Start it up, crawl under there and watch it. Just looking for a few tips.

Thanks.