It's funny, but on late model cars, the experts at various seminars I attended said that was the wrong way. Late model transmissions in a lot of vehicles have a temp sensor and should the oil be too hot or too cold, issues could arise. Apparently the factorys' do not want the transmission oil temperature to vary very much. Therefore, cooler oil is directed back through the rad to heat it back up to proper operating temperature. Sounds stupid to me, but these then there is a lot of stupid in these new cars.
