What Grade Is John Deere Hydraulic Oil?
What Grade Is John Deere Hydraulic Oil? Hy-Gard transmission and hydraulic oil is a unique oil developed by John Deere engineers to meet the exact needs of John Deere machines. Hy-Gard fluid is a multi-viscosity fluid with a high-viscosity index. Hy-Gard viscosity places it between ISO 46 and 68 grades. What weight is John Deere