[Hector]

From my experience the engine ran much hotter when overfilled.
The engine bay was very hot and oil/intake temperatures were much higher on load and idle.
There was also unburned oil from the exhaust and the engine felt quite rough.
That was only 0.2 0.25 quarts over max.
After two days i removed that amount and a bit more.
All temperatures went down immediately and the engine ran fine!
Now i prefer an oil level in/over the mid range of the dipstick.