Spark plug oil

[georgeramos]

I changed my plugs today and noticed on at least 3 of them there was oil on the threads as I pulled them. There did not appear to be any oil in the wells beforehand although the valve cover gaskets have been known to seep...

The electrodes did not have any oil on them and their color is grayish/brown.

Should I be alarmed? Are there any other symptoms I should look out for?

Thanks

[bobplyler]

That happens when some oil gets into the spark plug well. As long as the electrodes are not wet, you should be fine.