Mobil Cylinder Oils offer the following features and potential benefits:

Features Advantages and Potential Benefits
Excellent film integrity at high temperatures Excellent equipment protection at high temperatures occasioned by variable load conditions, avoiding unexpected downtime and equipment replacement
Provision of good sealing film round rods and in glands in steam applications
Excellent resistance to deposit formation at high temperatures Resistant to deposits on areas subject to high spot temperatures, maintaining cleaner systems, requiring less maintenance
Excellent anti-wear and low friction properties Additized grades give reduced wear
Very good water separation in absence of additives Non-additized grade gives ready separation from condensate
High quality and built in performance features Results in fewer unplanned stoppages and reduced maintenance costs


Mobil 600W Cylinder Oil is recommended for the following applications:

  • The splash lubrication of enclosed worm gears operating at moderate to high speeds and temperatures. (Mobil 600 W Cylinder Oil)
  • Steam cylinders, couplings, bearings, and break-in of compressor cylinders (Mobil 600 W Cylinder Oil)
  • Mobil 600W Super Cylinder Oil and Mobil Extra Hecla Super Cylinder Oil are recommended for the above applications but under higher temperature and load conditions
  • Mobil Extra Hecla Super Cylinder Mineral is recommended where ready separation from condensate is essential, for example, where exhaust steam is used for process work
  • Mobil Extra Hecla Super Cylinder Mineral may also be used as a tempering oil for bath temperatures up to 290ºC

Typical Properties

Mobil Cylinder Oils Mobil 600 W Cylinder Oil Mobil 600 W Super Cylinder Oil Mobil Extra Hecla Super Cylinder Oil Mobil Extra Hecla Super Cylinder Oil Mineral
ISO Viscosity Grade -- 460 680 1000
Viscosity, ASTM D 445
cSt @ 40ºC 375 460 680 1000
cSt @ 100ºC 28.0 30.5 35.8 42.0
Viscosity Index, ASTM D 2270 95 95 85 80
Pour Point, ºC, ASTM D 97 -9 -6 0 3
Flash Point, ºC, ASTM D 92 282 282 282 288
Density,ASTM D4052 @15.6ºC kg/l, 0.90 0.91 0.92 0.92
Copper Strip Corrosion, ASTM D 130,3 hrs @ 100º C 1B 1B 1B 1B


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