Hattaras- the oil pressure was good, but I had doubts at one point today after that episode with the tranny. As we have already discussed in some areas when I asked where it should be @ when idling on my other topic. @ 1500 RPMS, it is @ the "3" bar, when the engine is fully warmed, which is where I was told it was supposed to be. At idle when in gear, at full temperature today (before the oil change) I noticed it had dropped to slightly above the "0" (.1) at 500 RPMS, but then as soon as it would get to 1500 RPMS, it was back at the "3". That is what had me concerned so much that I changed the oil this evening- I even missed on going to church with grandma. I knew it had to be done ASAP. When I drove it the 2nd time today after that, even when it was idling at 500 RPMS, it was then at the ".3" bar. However, when it was in park and idling around 750 RPMS, it was between the "1" and "2", even at full operating temperature. I am assuming all is well with those readings. As mentioned, I know nothing about these cars. I am guessing this oil was completely worn out. I will know more about the pressure on Tuesday, when I drive it again, because I am not driving the car tomorrow.
I am hoping the new oil will bring the pressure up even more at that low idle. It would probably have to, because that oil filter had to be clogged. I am going to try to find some batteries around here and take a photo, because it was really unbelievable.
You said that oil I used would "clean" the engine since I used "diesel rated" oil. You do not think it will harm the engine do you if it is not "used" to this type of oil? I do not want it to start burning oil or anything.
I was suprising how easy it was to change the oil. It was 5:15 before I even got back with the oil and filter and was dusky dark. It was pitch dark before I finished and I was using flashlight.

I was confused about the oil filter canister however. It still had oil in the filter canister. I just left it and stuck the new filter down in it. I did not know what else to do. I did not have a syphon.
BTW - No, no records at all. The original owner put 220K miles on it and while no records, I think they took good care of the car, thats pretty obvious. However, I think the second owner (guy I bought it from) did not do anything to it, over the past 43,000 miles. It also needs a muffler and now I think it needs brake pads. They (brake pads) are squealing.