With eight different combinations of viscosity, slipperiness, and OE-recommended additives packages, Red Line Synthetic Oil offers the widest selection of ATF available. Red Line Synthetic Oil offers the widest selection of fully synthetic ATF on the market today. Each offer improved thermal stability, maintains viscosity levels, and features lower volatility while providing the required frictional characteristics of each fluid's OEM-style replacement. Reduced oxidation and lower volatility at high temperatures. Allows high-temp operation without varnishing valves and clutches.