There were some early-90s variants of Dexron II called Dexron II-D and Dexron II-E.
Dexron II: General Motors Dexron II was developed in the 1970s to replace GM Dexron for TorqueFlite transmissions to provide better viscosity control and additional oxidation inhibitors.Most lubricant manufacturers use this generic term for their automatic transmission fluid which meets the former General Motors Dexron III and Ford Mercon specifications which are no longer licensable by GM and Ford respectively. Multi-Purpose Automatic Transmission Fluid: Unimark Multi-Purpose D-III/M ATF Dexron: General Motors original ATF for automatic transmission fluids, covered typically as Type F transmission fluid.Shifting was a bit more noticeable than with General Motor’s fluids which include the original Dexron and subsequent variations Type F Transmission Fluid: Ford Motor and Toyota introduced the Type F Transmission in 1967 as equivalence to the General Motors Type A Transmission Fluid.Type A was used through the mid 1960’s and subsequently revised to Type A, Suffix A. Type A Transmission Fluid: Type A Transmission Fluid was introduced in the mid 1950’s for use in all automatic transmissions for General Motors vehicle brands.General Purpose Transmission Fluids: Xtreme Type A ATF, Unimark Type F ATF
This Technical Service Bulletin is designed to provide back ground into different transmission fluids past and present. It is typically colored red or green to distinguish it from motor oil and other fluids in the vehicle. TB 150122.1Īutomatic Transmission Fluid (ATF): is requirement of a transmission, such as valve operation, brake band friction and the torque converter as well as gear lubrication for synchronized self-shifting or automatic transmissions. Technical Service Bulletin – Transmission Fluid Guide
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