Hot day, hot oil

A couple of us were sharing heat readings , but I lost the thread location. So here it is to find. Last Sat 96F. Mow weeds out chute 30 minutes. Craftsman dyt4000 Intek 24.
Oil cooler and fan fitted.

Oil filter 117F
Cooler fitting 189F
Sump drain plug 183F
Rocker cover 210F
Exhaust header413F
Oil temp (liquid) 280-300F From Beedee gauge . See pics

Idling 5 minutes with fan on oil cooler reduced oil temp 50 degrees F.