Manufactured and refined by the Calumet Refining Company, BVA refrigeration oils are OEM approved and used by major compressor manufacturers. The oils offer excellent chemical stability when in the presence of refrigerant and other compressor materials. The oils also have good thermal stability to ensure good performance at high temperatures and have good low temperature properties to prevent congealing in the evaporator. The oils are also wax-free to prevent floc problems in the evaporator and expansion valve. OEM approved