MOBIL FLUID 424 High Performance Tractor Hydraulic Fluid - 5 Gal Pail MOBILFLUID 424 Tractor Hydraulic Fluid is an extra high performance multipurpose tractor lubricant Engineered to meet or exceed transmission and hydraulic fluid requirements Designed to optimise the performance of agricultural and commercial tractors operating in a wide range of environments and conditions. Combines select base oils and an advanced additive package to deliver the varied lubricant performance properties required in severe duty applications of agricultural and construction equipment drive trains.