Premium Gear Lube A true gear lubricant, where tough, lasting gear oil is needed. Formulated with special additives that allow peak performance of moving parts. Viscosity: cSt @ 40°C..454 Net 0.5 fl oz (14.7 mL) For use on: • R/C car ball joints and large servo gears • Model train power gears and locomotive cross heads • Mowers, bikes, chains and overhead door rollers.