Dracman, I just bought the car in December (for $1,000) and don't know if the valve adjustment has been checked. Knowing the guy that I stole the car from, I would say that they haven't been checked in a long time. Is this something easy to do or should I take it someplace to be done? I'm not that mechanically inclined.

Would you NOT suggest just adding the Diesel Purge straight into the fuel?