2008 LC. So I'm just over 100k in miles and took to the shop for routine maintenance. Oil change, differential fluids changed, fuel system cleaning, spark plugs replaced. When they pulled the plugs they told me that the plugs had oil on the threads, especially 1 and 8. He showed me the plugs in a little pan with oil on them. It was on the threads and on the top white ceramic part. I was pretty surprised by this since I've had zero issues or symptoms with the vehicle that would indicate an issue. Then told me it would be an $850 job to replace the valve cover seals and the plug tube seals. We got down to almost half that price. Has anyone else experienced this? Again, it was surprising to me because it's smooth and runs perfect. Maybe just fortunate timing and something they just caught early? Interested to hear opinions and thanks.