Red Line Superlight Shockproof Gear Oil Film thickness greater than an SAE 75W90, yet low fluid friction like ATF Used in low-power dog-ring racing transaxles with moderate to low load, qualifying, etc. Popular in British F3, Euro F3 and Star Mazda racing gearboxes for ultra low drag PRODUCT DETAILS:  Acting like a liquid grease, these unique lubricants contain a suspension of solid microscopic particles as an extreme pressure agent, offering a “best of both worlds” balance of low drag and superior protection for gear teeth Unique lubricant with solid microscopic particles offers low drag/high protection 40% lower coefficient of friction and 250% of the load carrying capacity of conventional gear oils Relatively low viscosity, yet cushions gear teeth under extreme pressure Helps to prevent tooth breakage, resists throw-off Avoid use with pumps, coolers, and filters as unique medium and affinity for metal can cause clogging Designed for wet sump transmissions and differentials with splash lubrication