Wow, what a list. Thanks. I will probably take it into the shop. When you say "check" those things... you mean "replace" right? Oh, I replaced the spark plugs about 2000 miles ago.

I guess I have not accepted a "worn out" engine, because even at this mileage, I still have NO oil leaks, OR no oil burning. It does not even go down at all on the oil stick between 3K oil changes. In fact, I have 3300 miles on the current oil and its on the same spot it was on when I changed it at 265,000. (It has 268,300 now). I currently have it on the "auto-RX" treatment interval- which I started 250 miles ago. Engine is quieter anyway.