Agreed with all of the above, except the antifreeze loss (sorry man)
I've been testing my new fuel pump for heat exhaustion (or lack thereof) and drove around on a day with the readout @112. Car (and new fuel pump) didn't miss a beat and kept me nice and cool inside. Did feel the heatsoak though, especially after restart that day.
My oil temp, like OP, was also a needle to the right of the center index mark, but no grey between needle and mark. Water straight up! I did hear the fan clutch a couple of times from a standstill pulling a bit more air after having been at idle for a bit.
Sounds like most of us are making it through the blistering heat OK (except for the poor soul above and my ex fuel pump)