SuperTrac J20A is an economical mid-tier Universal Tractor Transmission Oil (UTTO) considered one of the earliest UTTO type fluids as we know them today. Formulated for use in transmissions, hydraulic systems, and final drives of farm and industrial mixed fleet operations, it has an additive system designed for protection of wet brakes, power take off clutches (PTO), manual transmissions, and gear boxes. It has superior oxidation stability to that of J303 and provides improved protection against gum and varnish while also offering superior demulsability. The big improvement from J303 to J20A is the ability to meet certain specifications for equipment built in the late 1970s to 1980s including those from John Deere, Ford/New Holland, Case, Allis-Chalmers, Massey Ferguson, as well as being suitable for CAT TO-2 applications. Caution: Some of the specifications are no longer deemed active by the original equipment manufacturer. Significant harm to the transmission, hydraulic system, seals, final drive or axles is possible when using in applications in which it is not intended.