Dana heat transfer oils are high-performance lubricants for use in closed and open, cold-oil sealed, indirect heating and cooling systems.

Dana heat transfer oils may help:

  • High heat transfer rates and thereby potentially improved operating efficiency
  • Increase service life without deposit formation or viscosity increase
  • Easy starting of cold systems
  • Keep equipment free from sludge and coke deposits, helping result in lower maintenance




Advantages and Potential Benefits

High resistance to thermal cracking and decomposition

Free from sludge and coke deposits and minimum interference with heat transfer capability and minimized maintenance needs

Excellent thermal properties

High heat transfer rates and improved operating efficiency and lower operating costs

Good thermal and oxidative stability

Long trouble free service life and reduced downtime

Good low temperature fluidity

Easy starting of cold systems


Application Considerations:

Dana heat transfer oils should not be mixed with other oils since this may impair the excellent thermal and oxidation stability resulting in a change in other properties, and complicate analyses aimed at determining useful oil life. If the oils are used above their recommended maximum temperatures, vapor lock may result unless the system is designed to operate at the higher temperature by pressurizing with an inert gas such as nitrogen. At higher temperatures, fluid life will be shortened because the rate of thermal degradation which increases markedly as temperatures rise above the recommended limit. In well-designed systems the temperature of the oil film surrounding the heating element should be about 15ºC to 30ºC above the bulk oil temperature. If higher than this, the service life of the oil may be shortened and sludge and coke may be deposited which would interfere with the heat transfer rates.

As with other mineral oils, Dana heat transfer oils should be used only in systems with forced circulation. Systems that depend on convection for circulation of the heat transfer medium do not provide a rapid enough flow to prevent local overheating and rapid deterioration of the oil. Further, these oils are not recommended for use in open systems where hot oil is exposed directly to the air.

Typical Properties






Viscosity, ASTM D 445


cSt @ 40ºC



cSt @ 100ºC



Pour Point, ºC, ASTM D 97



Flash Point, ºC, ASTM D 92



Specific Gravity @15 ºC kg/l, ASTM D 4052



Handling health & Safety :

Lubricants consisting of highly refined mineral oils with specification additives. In normal conditions of use, this lubricant presents no particular toxic hazard. All lubricants, of any kind should be handled with great care, particularly avoiding can contact with the skin.

Prevent any splashing, and keep away from combustible materials. Store under cover and away from any risk of pollution. Dispose off the used oil correctly; don’t pour down drains, into watercourses or the soil.

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