tractor hydraulic fluid, can I use it?
So I have been going through some stuff I have around lately and ran across 2 5 gallon buckets of 'tractor hydraulic fluid' I got with my first bus (1986 international, dt466, at545). I am wondering if this is usable in that bus or in my new bus (1990 thomas saf-t-liner mvp, cummins 6bt, at545) and if so what system? i never was exactly sure why it was in the bus, but i did buy it from a farm, so maybe he was just storing it in there? I dont want to keep hauling it around if i dont need it, but would be more than happy to if it is. the coolant system takes coolant, engine takes oil, brakes and auto chains air, tranny takes dexron, so where would i use this, if at all? thanks for the help!