hydraulic oil

[Captn_Dave]

JDM J20C hydraulic oil.... is there any equal/compatable substitutes for Hy-Guard oil from John Deere?

From their site:
John Deere Hy-GARD® also contains friction modifiers to provide smoother clutch engagement and higher braking capacity with minimum chatter.

John Deere Hy-GARD® exceeds JDM J20C specifications and only John Deere Hy-GARD meets John Deere's exacting performance requirements.

 

[MarlandS]

Well if there isn't then the shop foreman at our local JD dealership has been telling us wrong for years.
Just look for the SF/SD/ (all the alphabet on the oil bottle) then match it . We use FS lubricants but Cenpeco, and other mainline companies will have products nearly identical to the Hy-Gard.
I say nearly because they all have their proprietary "special" additives. Which, if truth be known probably come from the same can. I don't believe the additives in the oil to be nearly as important as staying on top of the changing schedule and keeping it clean.

The only oil we buy from JD is the low viscosity hy-gard for the combines