OK long story short. I just bought a 94 rodeo 4x4 3.2. I got it for 700 dollars because the previous owner was worried about the infamous Isuzu ticking/tapping/knocking. So he would not let his son drive it with that noise and let it sit for two years only starting it to move it out of the way once in a while. It started right up for me and got me home(1 hour). I want to replace ALL fluids and a tune up. Problem is I never really worked on a vehicle that much. Heres my questions. Oil is black, but not leaking. How do I clean all of that out, synthetic oil? change the oil every few hundred miles for a while? use sea foam or rislone(spelling?)?. Also where the heck is the disturber cap? What else should I do. Honestly I have a little bit of money to fix this up and I have a couple buddy's that know there way around a car( or at least thinks they do). I love this truck and I would like to put some money in it to keep it going. I have a qustion about the head lights to, but I will start a new post for that.