Which viscosity hydro oil?

[BillyP]

I took my JD 4610 ehydro in to have the filters and hydro oil change. About a month after having this done, I got my bill and a list of products they used. I noticed they replaced the hydro oil with Low Viscosity hydraulic oil.

According to my owners manual and the chart for hydro oil, I should be using Hy-Guard (for temps from 0 to 122 degrees). The Low Viscosity they put it is good for temps from -40 to 83 degrees. I called and talked to the head mechanic and ask him about this. He told me that the JD schools he's went to, they've suggested using Low Viscosity for all weather climates.

My question is, is he yanking me around or is this true? I use this tractor in temps from 15 to 105 degrees.

Thanks
Billy

 

[MJB]

I heard the same kind of thing from my dealer. I went in to pick up the necessary supplies for my 200 hour oil change and grabbed a 5 gal bucket of standard viscosity Hy-guard. The guy at the counter said that only the low viscosity stuff should be used in my 4300. He would not believe me when I told him that the manual indicated that either the regular or the low viscosity stuff was approved depending on the temperature range. I happened to have my owners manual out in the truck and showed him the table. Since the vast majority of my use is during the summer, I went with the regular viscosity stuff. I'm sure the low viscosity stuff will be fine during the colder months, but if I were you, I would change over to the higher viscosity stuff at the next oil change. Hopefully you'll get in enough hours to need another change before the weather gets too hot.

 

[GaryK]

My manual called for the same thing on my HST but I went with the low viscosity and have not had any problems with it. I live on the coast of NC and it gets pretty warm in the summer. I have heard the same thing, tat the "company" recommends the low viscosity now......

 

[KENSFM]

My longtime JD dealer uses low viscosity oil in everything, only oil that he sells. He says that is the new recommendation from JD.
Ken in Massachusetts

 

[BillyP]

I reckon I'm safe then. I really wish they would let people know when they change something like this. Thanks guys.

Billy

 

[art]

Billy Case-IH has been giving us a 10 or near that weight for quite some time. Many of our farm customers that run both makes have been useing the Case-IH Hytran for some time do to it's better performance in the colder weather here in NY. JD's original is about a 20 weight oil.

 

[rmonio]

BillyP -

Pay close attention to the on-line manuals that you can get from the Deere website. That's how I found out about about the service changes, etc. Heck - they even had better pictures out there as I couldn't find one of the grease fittings on my 4600 and the pictures in the book didn't show it - the website did.

Take care don't be afraid to ask. TBN'ers have been really informative to me on these things too.

-Bob

 

[ChrisNJ]

I just changed everything at my 50hr this fall on a 4310, and my dealer recommended the hy-guard, i'm in NJ. It's been a very cold winter here and i've been using the tractor a little at 10 degrees, etcc. i've noticed the trans whines a touch more but operationally the same at 10 degrees. i don;t run her hard, just moving stuf etc.. but in the summer she's pushed to her limit, so it kinda made sense to go with the hy-guard for me.
I still need to add a few quarts, can i mix the two??? maybe get a few low-viscosity quarts in there just for kicks?????