Anybody over a 100k miles and still on the original transmission fluid?

I'm not sure you can take solace in that number; I see this in the Repair Manual:

 

So even at 120° C is within the normal operating temperature?

 

Maybe you're looking at the vertical column values, up the left side of the graph;? Those are electrical resistance values. Along the horizontal row of temp values, the highest centigrade number shown is 35(C), and in the text to right they mention 40C.

 

I see, so the higher the temperature the lower the resistance. But it seems that 35° C / 40° C is not that hot for what these motor generators are doing.