temperature will vary depending on climate and type of oil used as well as cooler type,transmission internal components and their condition,converter type locked or unlocked,and cooler type.as tested by us we have found oil pressure at wot max line to be 235 psi cold and 215 hot .this mans temperature increases reduce oil pressure due to changes in viscosity.locked up in 4th on the highway our test cars trans oil temperature is usually no higher than 175 degrees.