Hello there,
As a owner of a 2014 F20 114i i can confirm that the oil temp will reach a temp of 123º C STOCK with normal driving (120km/h) on Belgian highway.
Checked temp in secret hidden menu in car.
That same day i went to my tuner for a stage 1 remap and on my way back under normal driving speeds the oil temp was the same.
Just my 2 cents
Jeof