You bring up a good point Derek. I'm not sure about transmission temps possibly running too cool, but it is possible to have problems if engine oil runs too cool. Which is why the modern way to "control" engine oil is to pass it thru a heat exchanger that is part of the engine coolant system. That way, the oil runs in a range that is "the right" temperature, instead of too cool, or too hot.
I suppose that in very cold weather you could run a tranny too cool if you had a regular old fashioned "air" cooler plumbed in, but again, coming from me, that is just a guess.
Maybe someone with experience rebuilding auto trannies could chime in on this. I have almost zero experience with auto trans, as I have always been a manual transmission kind of purchaser.
george
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