has a hose stuck to it. If you look at the top part that is flat, you will see to 'prongs' that are bent over to hold the lid on. These tend to loosen, which allows oil to spew all over the inside of the air cleaner.

The small holes in the bottom of the air cleaner cover allow for excess oil to be relieved.

The amount of oil leakage depends on basically 2 things,

1) how tight is the lid on the coffee can

2) how much blowby does the engine have


Another possibility exists, in the turbo;s oiling. There is a hose that moves oil, and these can get weak and leak too.

If your not sure where the leak is comming from, I suggest, after power washing, to strategically place some aluminum foil in between suspect leakers. Then depending upon what side of the foil has oil you can troubleshoot the leak. This also works for PS leaks, coolant leaks, fuel leaks. sometimes I use plastic wrap if it's not close to a heat source.

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Marty