I set up a left engine oil pressure failure armed from 10-100 minutes on a 60 minute flight across North Carolina in the Working Title CJ4. It failed at top of climb and I was suprised how quickly the engine stopped working after the oil pressure was low, I was used to a car engine that will take some minutes to die.
I turned around and returned to my origin field with no issues although I needed strong rudder control to fight the yaw moment caused by unbalanced thrust. I also needed near max throttle on the remaining engine, which makes sense but was unexpected.
Note that failure config resets each flight which means I don’t take the time to set it up often. In X-plane I have global configs that have small chances of failure in every flight I take.
I did run out of fuel and made a successful forced landing on a daytime flight over Kenya