Meets and exceeds John Deere's current J20C specification, Schaeffer Mfg Simplex Supreme can be recommended in the following applications: John Deere J20A & B (Hy-gard) John Deere J20C (current) (Hy-gard) John Deere J14B & J14C John Deere J21A (All-Weather Hydraulic Fluid) John Deere 303 fluid Kubota UDT (current) Kubota, Super UDT (current), Simplex Supreme THF is compatible with other fluids on the market, which eliminates the need to drain the system before using Simplex Supreme, Simplex Supreme THF offers stable, balanced friction performance, which provides smoother, quieter and more efficient hydraulic performance