PLEASE HELP...I HAVE A BOBCAT CT225 TRACTOR, HYDROSTATIC , 4WD, TRANSMISSION AND HYDRAULICS SHARE THE SAME OIL/FLUID EACH WITH SEPARATE FILTER...I WAS WONDERING IF ANYONE KNOWS WHO MAKES THE HYDRAULIC FLUID FOR BOBCAT AND/OR WHAT WOULD BE A LESS EXPENSIVE EQUIVALENT??? THANKS IN ADVANCE FOR ANY HELP..