oil temps are really something i've kept my eye on since purchasing my talon, i've watched how different mods to the car have altered them..
my condensors gone, all the ac bits are gone.. but with the 3.5 thick fmic core (even with the smaller greddy core my oil temps got fairly high), and the big aluminum rad in the way with factory shroud (not to mention that all these super heat dissipating bits may actually compound the problem.. in theory they're transferring more heat to ambient), and 1 aftermarket higher cfm fan (1200cfm just to help move air along) in the ac fan spot there just really isn't enough air flow through my engine bay..
oil temps for me are really the only problem and they are quite high.. luckily i don't drive my car very far.. but if i were to drive my car like i should my oil temps would spike..
even half assing it up to the hope slide at a gentle 120kmh cruise without much throttle i hit 250F coming out of the head.. ( i only run RP, checked the oil after the FVT.. i've never seen oil degradation from heat before, but my common sense and research is telling me that it would feel or look different than normal.. and it didn't thankfully).
http://www.machinerylubrication.com/Read/989/fluid-degradation-causesi'm confident though that this B&M setup will cure this though
my only concern is that with the air cool setup that the oil will take longer to warm up.. but i suppose thats part of the reason why its better to run synthetics, as they were invented for cold climate protection and startups higher heat handling characteristics are also helpful with this situation.
everyone that modifies their dsm really should have an oil temp gauge though :p
sorry for the partial derail jason, but this may very well be effecting you as well.