HyGuard J20C Trans fluid

[Kernopelli]

Are you sure it is High Viscosity Hy-Gard?

Yeah, the manual says "John Deere High Viscosity Hy-Gard (J20C)..... Do not mix oils. Do not use type F automatics transmission fluid, J20D Low Viscosity Hy-Gard, or Bio Hy-Gard".

 

[Missouri Lad]

I just went out to the garage and looked at the one gallon (TY6354) container label, and it doesn't say anywhere it is High Viscosity oil. Just Transmission and Hydraulic Oil. I have JD345 tractor that runs with TY22035 Low Viscosity Hy-Gard oil. Two different types.

 

[Gator6x4]

I use John Deere Hy-Gard oil in John Deere Equipment and the Kubota Super hydraulic fluid in Kubota equipment.

That is my equipment though. I am a firm believer that if a person wants to use, used motor oil in their own equipment, let them do so.

 

[beenthere]

Here is a chart by Deere about their oils.. trans oil begins on p 10

https://jdparts.deere.com/partsmkt/document/english/featbene/DKD1801OilGuide.pdf

May help with the confusion..

 

[Missouri Lad]

I'm sure we all know that John Deere "doesn't" own a oil refinery, and has no faculty to make their own oils. John Deere may say they engineer their own oils and have a refinery to make it by their specs. Given that may be a fact, they still have someone to make the oils and chances are it may be a brand that is sold over the counter in some automobile stores or elsewhere. It turns out to be same as 10-W-30 oil



Hy-Gard oil can be used in most transmission and hydraulic
applications calling for 10W-30 or 5W-30 engine oil.
NOTE: Hy-Gard should be used in all applications calling
for JDM J20C.
–– Low-Viscosity Hy-Gard should be used in all applications
calling for JDM J20D.
–– Low-Viscosity Hy-Gard and Hy-Gard are compatible with
JDM J21A hydrostatic fluid and can be added to systems that
contain hydrostatic fluid.

 

[beenthere]

Mo Lad
You don't have a clue what JD does in their oil labs. And should look into the companies that they do own... 'nuff said.

 

[Oldoak]

Yeah, the manual says "John Deere High Viscosity Hy-Gard (J20C)..... Do not mix oils. Do not use type F automatics transmission fluid, J20D Low Viscosity Hy-Gard, or Bio Hy-Gard".

Well you certainly can't go wrong by following what the owner's manual specifies. :thumbsup:

 

[jgayman]

Are you sure it is High Viscosity Hy-Gard? I have a CUT and have had larger JD garden tractors for decades and they all call for Lo-Vis.

The Z930A operator's manual is pretty clear about the oil:

Transmission and Hydraulic Oil
NOTE: Tractor is filled with John Deere Hy-Gard (J20C) transmission oil at the factory.



Do not mix oils.

Do not use type "F"automatic transmission fluid, J20D Low Viscosity Hy-Gard or Bio Hy-Gard.

 

[Deere Dude]

Well you certainly can't go wrong by following what the owner's manual specifies. :thumbsup:

I was going back and forth, regular hygard or lo vis, because the owners manual says it would use either, depending on the temperature, and because I heard of problems going to regular hygard. The JD service guy said to us regular. I was going to check the oil level on my JD CUT and noticed on the dipstick engraved, "Lo Vis Hy Gard." So O stuck with what was in already.

 

[jgayman]

I just went out to the garage and looked at the one gallon (TY6354) container label, and it doesn't say anywhere it is High Viscosity oil. Just Transmission and Hydraulic Oil. I have JD345 tractor that runs with TY22035 Low Viscosity Hy-Gard oil. Two different types.

That is correct. The "normal viscosity" Hy-Gard is just labelled "Hy-Gard".