I had my first flight today after installing a oil Thermostat,oil temp held at 158 degrees outside temp was 11 degrees farenheit. Before installation I was running 128 degrees.

Do I understand this correct that the 912 needs a bypass inline when a coolant thermostat is installed? I have a cabin heater so I want full heat and do not want too much pressure in system when thermostat is closed. Sorry if this has been discussed before but just want to do things right. Thanks for the help!

Series VI 912s