The Chrysler TorqueFlite and Automatic Transmission Fluid

Increasing demands on automatic transmissions due to performance considerations, higher speed driving (1)*, heavier duty operation (that is, trailer towing) (2), and extended warranty life, have placed new and more stringent requirements on the transmission and fluid. The areas of increased fluid stress are oxidation stability due to higher operating temperatures, and shear stability because of higher shear rates. In meeting these needs, a transmission fluid has been developed which satisfies the specific requirements of the TorqueFlite transmisssion, as well as providing improvement in low-temperature engine starting performance.