Synthetic Hydraulic Oil

Duragard® Industrial R&O Turbine 68 Circulating Oil

Product Code: DURROT68
AVAILABLE IN: 2.5 gal JUG, 5 gal PAIL, 16 gal KEG, 30 gal DRUM, 55gal DRUM, and BULK (in selected areas)

2.5 gal Jug

5 gal Pail

16 gal KEG, 30gal DRUM, 55gal DRUM, and BULK (in selected areas)



Gravity, ºAPI ASTM D287 30.81
Specific Gravity @60ºF (15.6ºC) ASTM D4052 0.8718
Viscosity @ 40°C cSt ASTM D445 68.92
Viscosity @ 100°C cSt ASTM D445 8.89
Viscosity Index ASTM D2270 102
Pour Point °C (°F) ASTM D5950 -33 ºC (-27 ºF)
Color ASTM D1500 0.5
Phosphorus, wt. % ASTM D5185 0.003
Sulfur, wt. % ASTM D4951 0.011
Sulfated Ash, wt. % ASTM D874 0
Nitrogen, wt. % ASTM D4629 0.0164
Typical test data average values only, minor variations which do not affect product performance are to be expected during normal manufacturing.

Duragard® Industrial R&O Turbine 68 Circulating Oil is a premium quality oil formulated with ultra refined paraffinic base oils designed to meet the requirements of Steam Turbines, and Gas Turbines. It has a robust additive package that helps to eliminate the formation of varnish and sludge, and possesses unsurpassed rust and corrosion protection, and due to the high quality blend, a film strength that simply cannot be achieved using conventional mineral base oils.

Duragard® Industrial R&O Turbine 68 Circulating Oil has excellent class leading thermal stability, efficient & effective operation over a wide range of temperatures, promotes extended equipment life, and it has outstanding resistance to oxidation related to extended run time. It readily separates from water and has extraordinary resistance to foaming and provides for reduced water contamination in Gas & Steam powered Turbines. It is highly recommended for applications calling for rust and oxidation inhibited turbine type circulating oils.


  • * Exceptional protection against wear from contaminants and higher operating temperatures and pressures ensures longer equipment life.
  • * Maintains viscosity, even under higher operating temperatures, and has sufficient reserve of key additives, resulting in longer fluid life and reduced operating costs.
  • * Reduced foaming ensures smooth, efficient operation and proper lubrication of all parts in the system.

This product meets, or exceeds the requirements similar to the following manufacturers and global specifications:

Cincinnati Machine/Milacron P-54 DIN 51515
Denison HF-1 U.S. Steel 126
DIN 51524, Part 1 MIL-L-17672C
Alstom HTGD 90117 AFNOR E-48600 HL
General Electric GEK-32568F, GEK107395 British Standard 489
Solar Turbines ES 9-224
Constult your manufacturer's specifications for information and use.

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WARNING: Products may expose you to chemicals which are known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to
For specific product risks check the manufacturer’s SDS Section 15: Regulatory information.