Product Description
Mobil DTE 832 and 846 are superior performance turbine oils designed for use
in steam turbines, gas turbines and combined cycle gas turbine (CCGT)
applications under the most severe operating conditions. These progressive
products are based on high quality hydrotreated basestocks for exceptional
thermal/oxidation resistance along with specially chosen additives engineered
to provide the deposit control and "keep-clean" performance required by severe
duty gas turbines as well as excellent water separability needed for steam
turbine operation. The formulations also include a non-zinc antiwear system to
meet the load carrying requirements of geared turbines.
In
addition to meeting the separate requirements of modern steam and gas turbine
designs, Mobil DTE 800 Series are excellent choices for combined cycle
applications that require a single oil for a gas turbine and a steam turbine
run in tandem. Simultaneously meeting both deposit control and water
separation requirements is the key performance highlight of this advanced
lubricant technology. The excellent thermal/oxidative resistance of Mobil DTE
832 and 846 ensures that they can be operated in the most severe turbine
environments.
The performance features of Mobil DTE 800
Series oils translate into excellent equipment protection, reliable operation,
with reduced down-time and extended oil charge life. These products also
provide the ultimate flexibility to the operator because they can be used in
all turbine types: steam, gas and geared-turbines.
Features and Benefits
Mobil DTE brand mineral-based products have been the choice for turbine
operators worldwide for more than one hundred years. During that period our
company's scientists have maintained the strongest ties with turbine equipment
builders and operators to ensure that the needs of new turbine designs are met
or exceeded by our lubricants. This has required a continual upgrading of
Mobil turbine oils and the application of the most appropriate modern base oil
and additive technology
For modern stationary gas turbines
that operate at high power outputs, exceptional protection against
thermal/oxidative degradation and deposit control are key requirements. Severe
operation causes thermal stressing of the lubricant that can result in filter
plugging, servo valve deposits or short oil life. For modern steam turbines, a
high level of oxidation resistance is required as well as good water
separability in cases of steam leaks. For combined cycle operation, it is
necessary for the lubricant to meet the needs of both turbine types
DTE 800 Series oils offer the following features and potential benefits:
Features
|
Advantages and Potential Benefits
|
|
Meets or exceeds both gas turbine and steam turbine requirements of key
builders
|
Avoids lube misapplication and costly change-out
|
|
Reduces inventory costs
|
|
Excellent thermal/oxidation stability
|
Reduced downtime, more reliable operation
|
|
Extended oil charge life; lower product costs
|
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Excellent antiwear protection
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Excellent protection for geared turbines (gas- and steam-), lower maintenance
and replacement costs
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Extended equipment protection and reduced replacement costs
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Excellent demulsibility
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Efficient system operation and reduced maintenance
|
Applications
Mobil DTE 832 and 846 are superior performance turbine oils designed for use
in steam and gas turbine oil systems, direct- or gear-coupled and turbine
speed control mechanisms. Specific applications include:
- Combined cycle (CCGT) electric power generation applications including those with a common circulation system for the steam turbine and gas turbine.
- Lubrication of steam turbine or gas turbine units used for electric power generation, natural gas pipeline transmission, process operations and cogeneration plants.
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Specifications and Approvals

Mobil DTE 800 Series meets or exceeds the following industry specifications
| 
832
| 
846
|
| JIS K2213 Type 2 | X | X |
| DIN 51515-1 L-TD | X | X |
| DIN 51515-2 L-TG | X | X |
| GE GEK 28143A | X | X |
| Solar ES 9-224, Class II | X | X |
| GE GEK 32568-E/F | X | |
| GE GEK 101941-A | X | |
| GE GEK 107395 | X | |
| Alstom Power Sweden 812108 | X | |
| Alstom Power Sweden 812109 | | X |

Mobil DTE 800 Series has the following builder approvals:
| 
832
| 
846
|
| Alstom Power HTGD 90 117 | X | X |
| Siemens TLV 9013 04 | X | X |
| Quality level GE GEK 32568-C | X | |
Typical Properties

Mobil DTE 800 Series
| 
832
| 
846
|
| ISO Viscosity Grade | 32 | 46 |
| Viscosity, ASTM D 445 | | |
| cSt @ 40º C | 29.6 | 42.4 |
| cSt @ 100º C | 5.4 | 6.2 |
| Viscosity Index, ASTM D 2270 | 110 | 106 |
| Pour Point, ºC, ASTM D 97 | -30 | -30 |
| Flash Point, ºC, ASTM D 92 | 224 | 244 |
| Specific Gravity 15.6º C/15.6º C,ASTM D 4052 | 0.86 | 0.87 |
| TOST, ASTM D 943, Hours to 2 NN | 10,000+ | 10,000+ |
| RBOT, ASTM D 2272, min. | 1200 | 1100 |
| FZG Scuffing, DIN 5182, A/8.3/90, Fail Stage | 9 | 9 |
| Rust Prevention, ASTM D 665: | | |
| Distilled Water | Pass | Pass |
| Sea Water | Pass | Pass |
| Water Seperability, ASTM D 1401,Min. to 0 ml emulsion @ 54º C | 15 | 15 |
| Copper Strip Corrosion, ASTM D 130,3 hrs @ 100º C | 1A | 1A |
| Foam Test, ASTM D 892, Seq I, II and III Tendency/stability, ml/ml | 20/0 | 20/0 |
| Air Release, mins. | 2 | 2 |
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Health and Safety
Based on available information, this product is not expected to produce
adverse effects on health when used for the intended application and the
recommendations provided in the Material Safety Data Sheet (MSDS) are
followed. MSDS's are available upon request through your sales contract
office, or via the Internet. This product should not be used for purposes
other than its intended use. If disposing of used product, take care to
protect the environment.
The Mobil logotype, the Pegasus design and Mobil DTE are trademarks of ExxonMobil Corporation, or one of its subsidiaries.
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