I have a late 90's grasshopper( woods 5210) with the kubota gas engine. I had my hydraulic system puke out oil the other day. I changed the filters and refilled wityh 30 weight tractor hydro fluid and now both hydro units are hesitating. Could the puking have damaged my hydros or am I using the wrong oil? My mower has the Hydros with the filters on top. Any help would be appreciated.
