Superior wet-clutch performance smoothes clutch operation.Reduces wet-brake chatter, assures high braking capacity.Oil that is too light can cause increased wear too heavy will cause sluggish operation and lower mechanical efficiency. For Hy-Gard to work efficiently, it must flow readily through any part of the system. A polymeric viscosity improver helps Hy-Gard retain its proper viscosity over a wide range of operating temperatures.Performance-tested both in lab and in field and approved by John Deere engineers to meet increased demands for performance and protection of transmissions 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.It also is used as a replacement for Hy-Gard in cold weather applications. Consult the machine’s operator’s manual to determine what machines require low-viscosity Hy-Gard. Low-Viscosity Hy-Gard is used for factory fill in many machines.The exclusive Hy-Gard formula was designed for use in John Deere equipment however, it can also be used in many non-John Deere transmission and hydraulic systems. Low-Viscosity Hy-Gard has the same performance specifications as Hy-Gard and can be used as a replacement for Hy-Gard in cold weather. Hy-Gard may be used in many applications specifying either of these grades. Hy-Gard viscosity places it between ISO 46 and 68 grades. Low-Viscosity Hy-Gard has an ISO 32 viscosity grade. Both Hy-Gard fluids are multi-viscosity fluids with high-viscosity index. for me it's just easier to make one trip and get what i need rather than chance the auto parts place getting a wrong filter and halting the process by another few days.Hy-Gard and low-viscosity Hy-Gard transmission and hydraulic oils are unique oils developed by John Deere engineers to meet the exact needs of John Deere machines. it's as close as any auto parts store is, and the local auto parts places aren't going to have all the filters or the oil need in stock anyways. it's not like i change it that frequently, and when i need it, i usually have to go get filters at the dealer anyways. for my time and money, i have always ended up buying the actual jd oil though. I think that if you have an iso 32 oil suited for hydraulic/hydrostatic/gear applications, then i'd bet it is compatible. there isn't much of a cost difference between regular and low viscosity. that's kind of why i suspect that some of these other oils are equals.ġ: it is a cold weather replacement for original hy-gard.Ģ: it is an oil suitable for hydraulic systems, hydrostatic drives, and gear transmissions.ģ. unless it is like kfc original recipe and the secret ingredients are a well guarded item, i can't imagine there not being an aftermarket equivalent. it would seem that there is a market for it since most aftermarket hydraulic oil brands are $30+ a gallon cheaper. you would think that by now there would be an equivalent aftermarket solution, because so many smaller jd models use it now. i would assume that the entire production line of that tractor did too, so that dates it at least a few years before. I don't know how long the low viscosity hy-gard has been out, but my 770 is a 1998 model and it specified it then. fluidĪn oils wieght rating iso 32, iso 46, iso 68, 5w-20 and such has little to do with the additives that make the oil what it is intended for. I would have serious reservations about using it as a tractor/hyd. ISO 32 fluid may be fine for gear transmissions of a light duty or just a plain hydraulic system. I know first hand that the finals that ran in the gear oil had considerable LESS gear/bearing wear as compaired to the finals that used the THF, with same amount of hours. fluid in them often have large hydraulic driven motors that power a seperate final drive of some sort that is a totally seperate unit itself that takes a gear type oil in the final.ĭepending on the year in IH 1480/1680 combine finals used "hy-tran" IH's tractor hyd fluid or 80w-90 gear oil. Large tracked and other hydrostactic driven machines that use iso 32 hyd. oil SHOULD work in a hydrostatic drive system but, a 1023e has just a little more than just a hydrostatic drive system to operate with one oil.
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