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Transmission hydraulic oil

R

Russ from MN

Well-known Member
Location
Bemidji MN
I took some pictures of the Delvac oil I bought last year, and it looks like its rated for our JD 4600, but only down to 0 F, so I won't ever
put it in the transmission. I never know when I might spend the winter in N MN and want to use the tractor in cold weather. It will be fine
in the front axle, and I can use it in the Farmall C.
cvphoto105994.jpg


cvphoto105995.jpg
 

Probably no different than genuine DEERE Hygard, they sell the regular stuff and the "low visc." version for cold weather use.

In my experience not many people swap it with the season and get along without issues.
 
The challenge is knowing which J20C standard it meets. The standard has changed over the years.

Current Hygard is equivalent to 10w30. This started with the advent of CVT transmissions.

Prior Hygard was equivalent to 20W.

Hygard LowVis is equivalent to 10W.
 
Its fine I run the same stuff down to 40 below zero . Just jest it warm up first which you should do anyway
 
(quoted from post at 18:08:59 10/26/21) I don't see anything on that label about not using below 0*. Where is this info from?? :?:
Click to expand...

John Deere shows temperature ranges for regular (J20C) and Low Viscosity J20D) Hy-Gard. Since this Mobil fluid says it meets J20C spec, it would apply to the same ranges as the regular Hy-Gard. The Operator's Manual for some JD tractors (4600 may be one) recommends the low viscosity, J20D, before the regular J20C. One should check the operator's manuals for recommendations then match specs.

mvphoto83686.jpg
 
Applications requiring API GL-4 or SAE 80W grade lubricants in all gear applications except hypoid gear designs.

I would do more checking before putting it in your front axle.
 
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