The ATV gear oil uses custom additives to provide the best performance in Visco-Lok & Smart-Lok differentials. Also known as the XPS gear oil, it is synthetic, allows higher loads, superior shear stability and reduced oxidation. Get exceptional wear protection and superior performance at all operating temperatures. Rated 75W-90. Uses custom additives to provide the best performance in Visco-Lok & Smart-Lok differentials. Allows higher loads, superior shear stability and reduced oxidation. Exceptional wear protection and superior performance at all operating temperatures. 1 quart / 946 ml 75W-90