It is very rare for a SPF to overheat . Those fans should come on between 90-92 degrees C and
oil temp at that time will many times all of a sudden be higher than water temps . Once water temps come down then the
oil temp follows .
I would double check to make sure your fans are in fact operating correctly .
A problem that pops up now and then is when someone has mistakenly reversed the connections on the fans and one sucks air in but one is pushing air to the front . They should both be sucking air from the front of the car into the engine bay .
I have seen a rare fan failure as well when only one fan was operating .
Also make sure you have a proper 50/50 ratio of water to
antifreeze . Too much
antifreeze will increase the engine temps. Boiling temp with a 50/50 ratio should be about 235 degrees F .
Thermostat could be bad too. Or the thermal fan switch on the radiator.
Also , remember the accuracy of these gauges can leave a lot to be desired now and then too - however, so seldom does a SPF overheat that I would check for the surprises first . Bill