I have a 2030, I bought a ford 4000, took the loader off the ford and want to put it on my JD, my question is.....do I need to flush the hydraulics on the loader, or will the fluid match what is in the JD??
I would say go ahead and flush all the fluid you can get out. There is no way to just look at the fluid and tell. You would have to get the fluid analyzed to really know, and the test cost money.