SYNAVEX Synthetic Transmission Fluid is a premium quality, fully synthetic transmission fluid. SYNAVEX Synthetic Transmission Fluid uses a scientifically formulated combination of superior quality, synthetic base oils and state-of-the art additive technology to provide a truly outstanding synthetic transmission fluid that is designed to extend equipment life and drain intervals while lowering your maintenance and downtime cost. SYNAVEX Transmission Fluid meets the requirements of Eaton PS-164, Rockwell 0-81, Eaton and Rockwell 500,000 mile warranty.