Working in some heavy brush I must have hit some branches and my fittings on my tilt hydraulic cylinder loosened up. Thought it was broken, went out in garage to take it off and I could unscrew it with my fingers. Tightened it up and it's as good as new. NOW, where is the reservoir that I replace the hydraulic fluid that I lost? Anything I need to be aware of other than making sure the bucket is down and all the pressure is off the cylinders? Do I need genuine Kubota hydraulic fluid? Thanks for your help!