What viscosity is John Deere hydraulic oil? Hy-Gard oil can be used in most applications calling for 10W-30 or 5W-30 engine oil for transmission and hydraulic oils. Low-Viscosity Hy-Gard is compatible with hydrostatic fluid and can be added to systems, which contain hydrostatic fluid. Low-Viscosity Hy-Gard replaces the John Deere All-Weather Hydrostatic Fluid and should be used as a direct replacement for all applications recommending hydrostatic fluid. What is the equivalent to John Deere hydraulic oil? Petro-Canada Lubricants notes that the key difference between JDM J20A (which is replaced by the current JDM J20C or JDM 20D specification) is the addition of the Alli- son C-4 seal, oxidation, wear and frictional characteristics test requirements - a fact that is not commonly known. What is the difference between J20A and J20D? John Deere machine owners must place this type of oil within the transmission for the winter months. This oil is considered a winter grade lubrication fluid. In contrast, J20D transmission oil offers a low-viscosity fluid at room temperature. The J20D specification is the cold-temperature equivalent to J20C. It has a -50 deg pour point so low temp operation shouldn’t be a problem. Texas Refinery Corp’s Special Low Temp Universal Torque Fluid meets the JD J20D spec. Top notch products, but initial cost probably won’t be less. Is there a j20d fluid that meets C and D ratings?Īmsoil and Chevron have single products that meet BOTH the C and D rating. This is because it contains a polymeric viscosity improver. It also provides versatility across a range of equipment. It’s viscosity is perfect for John Deere equipment. The default hydraulic and transmission oil selected by them is the Hy-Gard hydraulic transmission fluid. John Deere engineers are selective about the fluid used. What type of hydraulic fluid does John Deere use? The viscosity of this fluid is equivalent to around SAE 10W-30. Mobil Fluid 424 is a mineral oil-based fluid. Before choosing the substitute oil, keep in mind that John Deere uses oils of viscosity 10W-30. With that being said, let’s dive into the substitutes for John Deere hydraulic oil. What is a good substitute for John Deere hydraulic oil? Therefore, you can only substitute the J20C with the J20D when the weather is warm. The J20D is low-viscosity hydraulic oil engineered for cold climates, whereas J20C is high-viscosity which is ideal in a warm climate. Therefore, it is crucial to know the right oil for your engine. What is the difference between j20c and j20d hydraulic oil?
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