The Robinair 13204 Premium High Vacuum Pump Oil is a proprietary blend of highly refined base oils designed for HVAC-R and automotive evacuation applications. Its formulation maintains stable viscosity at high operating temperatures and offers excellent cold-weather performance for easier pump starting. Special packaging reduces moisture content, helping pumps achieve deeper vacuum levels. The oil provides superior thermal stability to extend pump life and features a bright, clear appearance for easy inspection. Supplied in a 1-gallon container for professional use.