Go BottomJD 445 Oil Specs
 | JonnyRebel
Join Date: Feb 2016 Posts: 23 Industry, PA 
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2022-10-13 201363
I just picked up a new used 445 with a 60" deck and the JD plow attachment and want to change the hydraulic and gearbox oil along with an engine oil/filter change. Somewhere (I don't remember where), I heard I can use the same oil for the hydraulics and the gearbox that the engine takes. Is this true, or should I be using a different kind of oil?
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| JonnyRebel
Join Date: Feb 2016 Posts: 23 Industry, PA
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2022-10-17 201367
I went to my local JD dealer to pick up some parts and while I was there got the lowdown on the oil for the hydraulics. I was told the hydraulic oil was a low viscosity oil and if I used the engine oil in the hydraulics it would be too thick and cause overheating issues and premature failure. While he didn't know what the viscosity should be, he recommended using the JD hydraulic oil. He also told me I shouldn't have to completely change it and to just make sure the levels are correct. ....
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 | Hodado
Join Date: Mar 2022 Posts: 4 Michigan
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2022-11-07 201383
I have used JD Hy-Gard for over twenty years in my 425 and would not use anything else. ....
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