Red Line High Temp ATF is like Red Line D4 ATF, but with more viscosity for serious demands like towing and RVs. It is best for heavily-loaded vehicles, allowing operation at up to 70°F higher while maintain thicker viscosity than traditional ATF's. For heavily-loaded vehicles, allowing operation at up to 70°F higher while maintain thicker viscosity than traditional ATFs Use where Dexron III®, Dexron II®, Mercon® or GL-4 gear oil are recommended Dramatically less evaporation, less varnish of valves and clutches in extreme conditions MPN: Redline 30204 (quart); 30224 (case of 12 quarts) Specifications Brand Red Line Product Line High Temp ATF Oil Type Synthetic Manual / Automatic Automatic Rating Dexron III, Dexron II, Mercon or GL-4 Volume 1 qt