While on the highway with the low fuel warning having just come on.
2012 F150 5.0 stock.
It still cranks and feels like normal compression. Shows oil pressure too.
I have a tow coming, it's 6 degrees F outside.
I'll get some fuel and give it a shot.
What else?

 

Have you installed the fuel pump fuse relocation kit yet (fuse 27)? Part# EL3Z-14293-A - https://www.fordpartsgiant.com/parts...z-14293-a.html
I would check the fuse to see if the socket is burned or the fuse melted fir fuse 27 - common problem.

 

^ my thought also.

open fuse box on top of radiator and remove/inspect F27 and look into socket for burn signs.

 

Fill the tank with gas.

And in the future pay attention to the fuel guage. *Don't let it get so low as have to WARN
.