89 200TQ Oil Guage

["Small, Jason" <Jason.Small@valleylab.com>]

Are we sure we don't have to worry?  My 89 100Q at startup pins the oil
pressure gage past 5 bar.  After 2-5 minutes it drops to what I consider
normal operation of 2 to 4 bar (dependent on RPM).  I have always
thought this was due to the oil warming and its viscosity lowered.
However, I found out two months ago (the hard way) that my 100Q has an
external oil cooler.  Bentley implies this is a feature reserved for the
turbo engine.  I definitely have one, as my oil cooler blew out and had
to be replaced.  Now I wonder if the initial high oil pressure "reading"
(key word, Selander) is a result of the oil cooler not opening until
after warm-up.  Any thoughts?