Wow! Thanks for all the reply's. I dont have much on service records but the top end is super clean so I'd guess it had regular oil changes. Just turned 91,k miles.
I have a pit in my garage so I'll change the fuel filter (I''m guessing it's on one of the frame rails) and I'll also do whatever else I can do before I have to take it in for the professionals.
Thanks very much for the reply's.
Bob.