I really do not trust Google much and have not a clue what a triple 3 fluid is.
My hydraulic fluid weeps slightly from the Nimco control. Did not do this until I replaced the existing fluid with Napa (which says compatible with Permatran). Lucas product ads sound good and some posts I have seen sound good. Thought about Amsoil fluid or the new 821 XL. But, the current fluid only has about 50 hour on it. Hence, thinking about Lucas product. Weeping may just be the high dollar Nimco not doing its job.
I am 75 and do not get around well, so things are best done once and done right. My dealer is next to useless - only interested in heavy equipment sales. Not is subcompact service. Tried to get him to come out and service or even come and get it and take it for service - no interest! So I have to do everything myself. No family except wife (she does help a lot). Even thought about selling and buying a new one - but am a little hard put to replace a tractor with only 440 hours on it.
It hauls yard debris, trash cans, and what ever lifting we need done. Also plows snow in the winter. Lives in a heated garage. Basically, a very easy life.
Now you know why I ask the experts. I really would appreciate some advice.