On 9/16/2015 7:45 AM, charlie hill wrote: > My old Allis tractors have high pressure (3500 psi) piston > pumps and they use 20 wt auto transmission fluid or hytran. > > Charlie Same here Charlie. My Super 90 Massey hydraulics works just fine on Case IH Hytran oil. Same as the bigger and newer ones do .. It will lift anything I have tried so far. Ralph in Sask.