My auto trans can get down to 60C on the highway with the TC locked. On hot days in traffic it can get to 95ish but I have no fan on my aftermarket trans cooler.
My temp reading is taken from the RH side banjo where the fluid exits to the cooler so this is the hottest reading.
The auto temp light on the dash comes on at 140C but that's the temp in the pan. If not using synthetic fluid, 140C usually means damage in an older box.
I've decided I won't panic if the needle hits 100ish but I'll pull over if it persists. Hasn't happened yet..
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