engine/oil temp

You want your oil to be 200~220'F as that is the rated temp for its operating viscosity which is the second number in the oil spec - ie 20W-50.

The engine builders would have specified a 10W-XX oil to protect things during startup. The lower first number will let you quickly build oil pressure and get oil flowing where it needs to much faster than a traditional 20W-XX type oil.

I would run a 10W-40 or 10W-50 if you are concerned about the oil pressure when warm, but your temps seem fine.

Cheers - boingk