Which fluid for JD300 hydro transmission

   / Which fluid for JD300 hydro transmission #1  

coloradotrout

Gold Member
Joined
Aug 19, 2005
Messages
342
Location
Eastern KS
Tractor
JD 4100 HST CUT w/Yanmar 3TNE74 | JD 300 Lawn
The manual calls for "JD all weather hydrostatic" or type F automotive ATF.

What's in there now is reddish looking ATF.

I'm thinking to drain and replace the filter.

I run Valvoline maxlife (red jug) in my Honda and Toyota cars. Can I use that? I do also use low viscosity hygard in my JD4100.
 
   / Which fluid for JD300 hydro transmission #2  
The red is probably ford type F transmission fluid, its what is called for in the 300 series JD tractors.
 
   / Which fluid for JD300 hydro transmission #3  
If it was my JD model 300 industrial tractor it would receive JD Hy-Gard or it's equivalent that meets hyd oil specifications of J20C. JD 300 brake linings don't tolerate incorrect hyd oil spec's or moisture!
 

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