What is oil pressure gauge telling me?

[dfox <dfox@macatawa.org>]

Dear partners in pleasure/masochism <g>,

The oil pressure gauge in my '90 100 (5 cyl. engine) is trying 
to tell me something. I would like to understand its language a 
little better so that I can best repond to the message.

Once the engine has warmed up and is idling (700-800 rpm or so), 
the oil pressure is just less than 2 bar. With increased engine 
revolutions, the oil pressure increases to just below 5 bar at, 
say, 3500 revolutions per minute or so. 

The oil in the engine currently has experienced 2000 miles or
so. Is something sort of bad happening or am I just concerning
myself with gibberish?

Thanks in advance.

Regards,
Dave Fox

'90 100
'92 100 csq