ya, know.... I really haven't checked....doh!
I do know that it still makes noise when I shake it.....but for $2.44 I'll replace it since it's still the one that came with the car....
I think he was refering to the vacuum suppied. The rubber tube and the metal tube at caab can get clogged. That would show oil in the air cleaner can too. There are leak stopping additives on the shelf but I've never used one. Single viscosity oil like 30W won't leak as much either. Some of the gaskets are fairly easy to replace.