3Ts
Elite Member
I have a 10hp Case tractor (model 210) about 1970's vintage that calls for SAE 30 motor oil for it's hydraulic system. (It has a gas engine driving a hydraulic pump which then runs a hydraulic motor on the axle and a hydraulic cylinder for the hitch.) I also have a Kubota L235 that calls for Kubota UDT hydraulic fluid for its transmission and hydraulic fluid. I am about to get an implement that will be used with both tractors and I don't want to have cross contamination of the hydraulic fluids. So I plan to drain the SAE 30 from the Case and replace it with the Kubota UDT (or equivalent). I expect a couple of flushes to get rid of the SAE 30 oil. The question I have is: Will replacing the SAE 30 with the UDT fluid cause any problems? i.e. is viscosity the same, are the additives similar, I'd prefer not to damage the pump or motor in this tractor. They've not been made for many many years so parts are unlikely to be available.