Please note that this is my first bobcat and have very little knowledge of them,but am learning. I bought this off someone to just do small work in my own yard.I had emailed this person that I think it needed hydro. fluid and he told me to go to wal mart and buy 80W90 gear oil and put it in. Well i need not say what I done but onl half is what i put in. Right away I crank it and it would not turn right or left, so I knew that I had to drain and I did well I have since put hydrolic fluid back in and everything seems to work but now my steering want turn so well.It has been adjusted and when I try backing up a hill it want go and before it did. Can anyone tell me what they think is up. I soon will be getting a patrs and maint. manual for this skid steer it is (year) 60's early 70' model.Any help as in the right fluids,ect.. would be greatly appericated.