Is there anything in the transmission fluid for example friction modifier, etc. which needs a certain temperature (e.g. 190F) to activate?
basically is there a harm in running the trans fluid cooler than what they were designed for?
For example a truck designed to run 180-200°F range from the factory ... and you add additional or bigger trans cooler (for towing) to bring the temps down 150-170°F.
I was discussing it with a knowledgeable co-worker who says they design it that way (run hotter) to squeeze a little mpg but it's not good for the trans fluid in general ... However another knowledgeable friend says it need high temp to active stuff in the fluid.
I figured bitog can resolve the mystery!
basically is there a harm in running the trans fluid cooler than what they were designed for?
For example a truck designed to run 180-200°F range from the factory ... and you add additional or bigger trans cooler (for towing) to bring the temps down 150-170°F.
I was discussing it with a knowledgeable co-worker who says they design it that way (run hotter) to squeeze a little mpg but it's not good for the trans fluid in general ... However another knowledgeable friend says it need high temp to active stuff in the fluid.
I figured bitog can resolve the mystery!