MinnesotaEric
Super Member
JD20C trans/hydro fluid is the same spec as Mobilfluid 424 and available at every Fleet store and NAPA in the nation.
Look - there has got to be a point where I say - - STOP!!! When the hydraulic fluid I put in my tractor costs more than the whiskey I drink.....................
As long as one is using their own attachments, keeps their QA, QDs capped and plugged and stores the machine where rain/snow or other water cannot enter the hydraulics, one should be able to maintain system integrity without a lot of effort. If fluid becomes contaminated or milky- a sign of water contamination, then change it out.