Blended from premium synthetic base oils and combined with shear stable synthetic polymers to deliver a high-quality additive package that includes anti-wear and -oxidants, friction modifiers and corrosion inhibitors, producing a truly superior multi-purpose SxS lubricant, that's suitable for use with the transmission, gear case, as well as the front and rear differentials. Lucas Oil® Synthetic SxS Multi-Purpose Gearcase And Differential Fluid will not permanently shear thin, ensuring that viscosity remains constant over the life of the fluid. Suitable for most of today's ATV/UTV and Side-by-Sides. Premium multi-functional transmission and gear oil that is friction modified for low friction and wear. Suitable for most transmissions / transaxles, differentials - both front and back. Extreme pressure protection ensures longer component life.