[200q20v] Is my thermostat stuck open?

[C1J1Miller at aol.com]

For me, the temp seems to sit at the first hash mark after the 3 "cold" close 
together marks.  Stays there consistently when running in "auto" which runs 
the low-speed fan.  Slightly higher in "econ" with no fan.  Just past 
"12-o'clock" to the right, the mid speed fan comes on.

Oil temp rises to the first mark after 60 on the highway (prolly 100 C?).  
Seldom goes much higher.  I don't do boost until temp rises towards normal, 
but more importantly, until the oil temp reaches the 60 hash mark.
chris