Of interest on the PWC 200 B versions there is NO oil pressure until ~45% N1.
The "B" versions (AH) have "regulated" oil pressure that stays pretty constant and the "C" (Leonardo) versions effectively don't - oil pressure goes up and down with N1 and temperature and the instrumentation accounts for it.
The Leo "C" version works OK until you have a duff thermo-valve.
If there is no oil visible in the engine sight glass you start the engine and if you have no oil pressure you need to put some oil in it!! It is possible for the oil to drain into the RGB after a period of standing and overfilling it is just as bad.
There is also no oil change period or requirement.
There is an issue with the PW206 that the oil filler cap is checked regularly for tight fit and not able to unlatch itself. There is a mod to fix this issue with a large ball valve in the filler neck but it is optional. If you leave the filler off or loose the engine oil WILL escape!!
On the CAD there are a lot of captions - ENG OIL TEMP isn't one of them because it doesn't exist! The OIL TEMP gauge is normally behind your left knee if you are tall! In particular ENG 2.