an agricultural system including a tractor and an implement powered by the tractor . the implement having a plurality of hydraulic fluid using devices , at least one transducer , and a communications means . the transducer is configured to generate a signal representative of a hydraulic load requirement of the plurality of hydraulic fluid using devices . the communications means convey the signal to the tractor . the tractor is configured to alter a hydraulic fluid characteristic supplied to the implement dependent upon the signal .