Good advice above for direct reading oil pressure gouge.
Found this on the www:
2012 F150 5.0L Problem Fixed. I changed the oil pressure sensor about 6 months ago. Stopped for a little bit then started back. Started having issues with idle so first i changed my oil pressure sensor again since it had oil on it from a rear main seal leak. Here is link to show the easiest way of doing it.
https://youtu.be/uta45V4e2Mo Then had my oil changed. Brought it home and replaced the spark plugs and took the throttle body off. The throttle body I think was the cause of everything. It had a lot of build up so I cleaned it with throttle body cleaner. Do not use carburetor cleaner. I heard this could ruin the coating in the throttle body. Put it back together and the idle is perfect and I haven't lost oil pressure. I believe the issue with the oil pressure was from the idle dropping too low.
Guess it is possible that something is causing idle speed to drop too low and then low oil pressure switch and message shuts it down?
Does selecting "Neutral" when stopping, stop the shutdowns ?
Maybe time to consider 5w30 oil ?
Cheers