What HYD oil ? A lot of places say 10w30 motor oil but there is a sticker saying to use TCH ?
case changed the oil needs to 10w30 diesel oil no additive available any longer
We use a quality tractor hydraulic fluid in all skid steers. Such as Mobilfliud 424, Chevron th1000, deere hygard, cnh hytran. As far as I have been able to tell, for hydro systems these meet or greatly exceed the old Case needs.