Forum Discussion
DougE
Jan 02, 2015Explorer
wgriswold, That was always my thought and at one time it may have been accepted practice. Nowadays it's vehicle radiator first and auxiliary cooler second. Auto manufacturers seem to be more concerned about overheating than running too cool. I think, and maybe someone can confirm, that modern automatic transmissions now have temperature sensing that recirculates the fluid until it gets warm before allowing it to go to the cooler.
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