Red Line High Temp Automatic Transmission Fluid - Case of 12A synthetic ATF that is a GL 4 gear oil for use where Dexron II or Mercon is recommended. A higher viscosity allows optimal operation at 70 degrees F higher temperatures, providing better torque converter efficiency. A good choice for heavily loaded vehicles. Superior stability eliminates the high temperature varnishing of valves and clutches. Price is per Quart.