With eight different combinations of viscosity, slipperiness, and OE-recommended additives packages, Red Line offers the widest selection of ATF available Red Line offers the widest selection of fully-synthetic ATF on the market today Each offer improved thermal stability, maintain viscosity levels, and feature lower volatility while providing the required frictional characteristics of each fluid's OEM-style replacement Reduced oxidation and lower volatility at high temperature Allows high-temp operation without varnishing valves and clutches Extended drain intervals Details: Sold as 1 Gallon Superior consistency and wear protection for Bracket and Heads-Up drag racing transmissions like Power glide and Turbo 400 Popular with turbo and blown door slammers like NMRA, NMCA, ORSCA and PSCA -- replaces hydraulic oils and other non-ATFs used to escape heat issues Low viscosity offers less frictional drag for quicker ETs and more MPH Dissipates heat for longer trans life, better clutch, gear, and seal life Compatible with petroleum Atfs and other brands synthetic ATF Extreme-pressure protection provides much better film-strength Red Line Lightweight Racing ATF is a full-synthetic formula designed specifically for use in drag racing automatic transmissions that need the positive shift of a Type-F automatic transmission fluid, yet require ultimate consistency. This ATF contains no slipperiness additives, producing faster shifts and quicker lock-up and can reduce elapsed time in drag racing. Compared to Red line racing Atf, this product maintains a comparably thin viscosity to minimize heat buildup and reduce changes in fluid thickness between rounds. This product is designed for use where Type-F, Dexron, and Mercon fluids are recommended in both bracket and heads-up drag racing transmissions. Vis at 100 degrees C 4.9 Vis at 40 degrees C 23.2 Viscosity Index 140 Pour Point, degrees C neg 50 Pour Point, degrees F neg 58 Brookfield Vis at neg 40 degrees C, P 75