Another question on the subject, has anyone changed out the Deere Hy-gard low viscosity fluid for something even lower viscosity? And what is the viscosity of Hy-gard fluid?
Mike.
EDIT
I did a search and learned that Hy-Gard low viscosity fluid is multi viscosity and rated ISO 32. ISO ratings are explained a little in the following link and from that it appears to me that it's about 10 weight.