greatoppressor wrote:
You may want to check your PCV valve. If the valve is bad, pressure will build up in your crankcase and cause oil to leak out of the main seal. The tricky part is that this kind of leak may leave little or no evidence in your driveway or garage because the engine has to be running for the crankcase pressure to stay high enough for it to leak... that is, until the main seal gets damaged bad enough and will just start leaking on its own, with or without pressure. If that's where the oil is coming out, you might be able to find some oily residue below the main seal line somewhere around the perimeter of the oil pan.
If that's your problem and you catch it soon enough, your leak will go away completely (or close to it). If your PCV valve is still original at 90K miles, you're definitely due for a new one. Plus, they only cost something like $5 or less, so it's pretty cheap insurance against a main seal failure.
-SR-
Good thing to check. I had the same problem but what is odd is that it was only while it was warm. When cold the oil level was back where it should be. I changed to a dif type of oil and no probs since *shrug*
I have not swapped out my pcv valve though....unless the dealer did and didnt tell me and I am sitting on 103k.
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