Oil preasure?

[Phil Payne]

> I just fixed my oil preasure gauge in a recently purchased late 1989 200tq.
> This was easy since it was simply unpluged. Now, I am starting to think this
> was done for a reason i.e., to conceal low oil preasure. So here is my
> question: What is the proper oil preasure for this vehicle at idle and at
> above 2000 rpm? At startup it seems ok (i.e., gauge reads close to 4 or 5
> bar); however, when it warms up I get between 2-3 bar (when really warm it's
> about 2.3-2.5 bar) in the 2000-3000 rpm range, and about 1.2 bar at idle.
> THIS IS ALL ASSUMING THAT EACH LINE IS ONE BAR (as I think it is). Also I am
> using 10w30 motor oil (little thin). Second question is what weight should I
> use? Third question is if it is low oil preasure what is causing it?

If you have a problem, we're all in trouble.  Sounds pretty normal.

--
  Phil Payne
  http://www.isham-research.com/quattro
  +44 7785 302 803
  +49 173 6242039