Yes, why muck up a brand new radiator?

 

How long does it take to work? Without cooling will it be a problem?

 

I’m thinking just run it through the gears around the block to flush out the fluid and drop the pan and filter again, so 14 to 21 quarts 2 or 3 gaskets and filters, and an afternoon of prayer for the rest of the transmission and torque converter to flush out!
I wonder how well it would work to run a line into a pail and another to a jug of transmission fluid to the cooler lines?
That might cook the clutches and the pump!

 

Wow, never would have thought about transmission fluid in the coolant. I'm going to check it out Monday. Thank you!! Merry Christmas

 

We used to pull the line coming out and run it into a graduated 5 gallon catch bucket pouring ATF in at about the same rate. Works well.

 

A similar process to drain the transmission

 

​​​​​​​That is exactly the way ATF exchange machines work with a "flush & fill".