Patrick...Having the
oil checked sounds like a good thing to do. I have my
blood tested once a year, so why not my
oil... which is sort of the blood of the
car. Who do you send your sample it to, what does it cost and what does their
diagnostic form back to you actually look like? I'm sure the results
give you a pretty good snap-shot of engine health if it reveals things like
oil and gas being present where they should not be.