Oil in Spark Plugs Cylinders
I just replaced my spark plugs on my 2000 Taurus SE-S, Duratec engine with 170,000 miles. Apparently four of the six plugs were original. It was also nice to see that there was sealant used on all six coils. Over the 11 years that I've owned this car (originally a company car) I've taken this car into national chain shops, such as Merchant's and Ford dealerships, as well as family owned local shops, which I now use exclusively, and apparently everyone decided to make sure there was some sealant on the ends of the coils to seal up the plugs with the coils. Some used it only around the ceramic part of the plug, some got it all over the inside shaft, or boot, of the coils.
Now on to my question. Four of the six cylinders had oil on the plugs when I pulled them out. Is the oil on the plugs a concern? The car has always run well. It is no longer my daily driver, but I still take it on a 50 mile round trip run to work once a week. The car runs fine and has always been very reliable. I get about 24 MPG and no significant loss of oil.
I'm not looking to create problems, or work, but is there something I can do to keep this car on the road longer? I'd hate to see this issue kill the Taurus in the short term.