On Thu, Apr 5, 2012 at 5:50 AM, David Bjorkman <ddbjorkman@verizon.net>wrote:

>  The only thing that I am not sure about is  warming the tranny to
> operating temp. when starting and driving those first few miles.  Anyone
> want to comment on that?
>

Fluid friction in the torque converter gets it pretty hot pretty quick,
faster than the engine coolant heats up, I'd say. Kind of a moot point,
though. The factory heat exchanger cooler is plumbed in parallel with the
radiator, so it really only sees coolant flow when the thermostat opens, by
which time the transmission fluid has probably already warmed itself up.