Hard to say since I changed 2 things at once. But, I did notice that on the highway my temp gauge never got out of the center spot, when it used to get between 1/2 and 3/4 before I fixed the baffles. I didn’t have the OBD2 dongle hooked up, so I don’t know the precise coolant temps from this trip. But it seems that routing the transmission fluid through the radiator’s cooler hasn’t had any negative effect on coolant temp.It would be interesting to know how much of a difference the new baffles on either side of the radiator made.
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