I have a Freeman 3000 front loader on a 1959 Ford Workmaster 601. I purchased this setup about 2 years ago. The hydraulics were nice and strong. This spring I noticed it would take forever to lift the bucket. I checked the fluid and noticed it looked like chocolate milk. I emptied the old fluid and cleansed the system with diesel fuel at the recommendation of a local shop. This changed nothing. I see no apparent leaks anywhere and the fluid level has not changed. Any suggestions? I do not know a whole lot about hydraulics and rely upon google searches for my knowledge, but have more confidence from the people on this forum than google!