i finaly bought the 86 300sdl i have been driving for awhile. this is my first diesel ever, im a new mechanic myself but dont have any diesel experience. i dont have any idea on what kind of service has been done to this car. i was wondering what i should check for and what i should replace and what not. i notices the little clear fuel filter under the hood is dirty, im gona change that but is there another fuel filter on this car? also this car has 220k im hopeing to get many more out of it