Mobil DTE™ Oil Named Series  

Mobil Industrial, Canada

Premium Performance Circulating Lubricants

Product Description

The Mobil DTE™  Oil Named Series of lubricants are premium performance circulating lubricants designed for applications including steam and hydro turbine sets and other systems where long lubricant service life is required. Mobil DTE Oil Named Series lubricants are formulated from highly refined base stocks and an additive system which provide an extremely high level of chemical and thermal stability, rapid and complete separation from water and a high resistance to emulsification. They provide excellent protection against rust and corrosion, including resistance to salt water, and good antiwear properties. They have a high viscosity index which ensures minimum variation of film thickness with temperature and minimum power loss during the warm up period. These grades have excellent air release properties which allow entrained air to separate, thus avoiding pump cavitation and erratic operation.

Mobil DTE Oil Named are the lubricants of choice for many users because of their reputation for long life, excellent equipment protection and outstanding versatility in the wide variety of industrial applications. DTE Oil Named lubricants are used widely in steam turbines and hydroturbines with splash, bath and ring-oiling arrangements, and all other continuous circulation methods involving pumps, valves and ancillary equipment. This product series is recommended for continous service in the lubrication of plain and rolling bearings and parallel shaft gearing. They have also been used successfully in rotary air compressor applications and reciprocating natural gas compressors as well as vacuum pumps. Their reputation is based on many decades of successful service and satisfied users.


Features and Benefits

The Mobil DTE family of products is well known and highly regarded worldwide based on their outstanding performance and the R & D expertise and the global technical support which stand behind the brand. The highly versatile performance of Mobil DTE Oil Named oils has made them the oil of choice for a multitude of industrial equipment applications around the world.

Mobil DTE Named oils enjoy an excellent reputation in the lubrication of the circulation systems of steam turbines and hydro turbines, including geared turbines, plus a wide variety of ancillary equipment. As designs change and increase in severity, it is the challenge of our formulation scientists to understand the effect of these changes on the lubricant and to formulate these products for the broad versatility they are recognised for.

For the Mobil DTE Oil Named Series of lubricants, this process has resulted in the use of special base stocks for outstanding oxidation stability, plus a unique additive combination to ensure the excellent, wide-ranging performance of these oils. A review of the features, advantages and potential benefits of the product are shown below.

FeaturesAdvantages and Potential Benefits
Very high level of chemical and thermal stability and resistance to sludging and varnishingLong oil charge life in circulation systems and reduced oil replacement costs
 Less unplanned downtime and reduced maintenance costs
Excellent water release propertiesImproved operating efficiency
Very good antiwear protectionLonger equipment life, reduced maintenance and downtime
Long term protection against rust and corrosionLonger equipment life, reduced maintenance and downtime
High resistance to foaming and excellent air releaseAvoids pump cavitation, noisy and erratic operation
Highly versatile - multiple applicationsRationalize inventory, reduced inventory costs



The Mobil DTE Oil Named Series of lubricants are premium performance circulating lubricants designed for applications where long lubricant service life is required. Specific applications include:

  • Land-based and marine steam turbine, hydro turbine and some gas turbine circulation systems, including pumps, valves and other ancillary equipment
  • Continuous service in plain and roller bearings and parallel shaft gearing
  • Turbines with oil supplied by splash, bath, ring oiling or other mechanical means
  • Moderate severity hydraulic pumps
  • Compressors and vacuum pumps handling air, natural gas, and inert gases, and with discharge temperatures not exceeding 150C


Specifications and Approvals

Mobil DTE Named Series meets or exceeds the requirements of:Mobil DTE LightMobil DTE MediumMobil DTE Heavy MediumMobil DTE Heavy
DIN 51515-1: 2010-02X
DIN 51517-2: 2009-06X
GE GEK 46506DX   
GE GEK 27070X   
GE GEK 28143AXX  
JIS K-2213 Type 2 w/Additives (1983)XXX 


Typical Properties

Mobil DTE Named SeriesMobil DTE LightMobil DTE MediumMobil DTE Heavy MediumMobil DTE Heavy
ISO Viscosity Grade324668100
Viscosity, ASTM D 445    
cSt @ 40º C3144.565.195.1
cSt @ 100º C5.56.98.710.9
Viscosity Index, ASTM D 2270102989592
Pour Point, ºC, ASTM D 97-18-15-15-15
Flash Point, ºC, ASTM D 92218221223237
Density @15º C kg/l, ASTM D 40520.850.860.870.88
TOST, ASTM D 943, Hours to 2 NN5000370045004500
Rust Prevention, ASTM D 665:    
Distilled WaterPassPassPassPass
Sea WaterPassPassPassPass
Water Seperability, ASTM D 1401,Min. to 3 ml emulsion @ 54ºC15152030
Copper Strip Corrosion, ASTM D 130,3 hrs @ 121º C1B1B1B1B
Foam Test, ASTM D 892, Seq I Tendency/stability, ml/ml20/050/050/050/0


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 DTE are trademarks of ExxonMobil Corporation, or one of its subsidiaries.


Imperial Oil

Petroleum and Chemicals Division
Lubricants and Specialties
240 Fourth Ave SW
C. P. 2480, Station M
Calgary AB T2P 3 M 9


Typical Properties are typical of those obtained with normal production tolerance and do not constitute a specification. Variations that do not affect product performance are to be expected during normal manufacture and at different blending locations. The information contained herein is subject to change without notice. All products may not be available locally. For more information, contact your local ExxonMobil contact or visit
ExxonMobil is comprised of numerous affiliates and subsidiaries, many with names that include Esso, Mobil, or ExxonMobil. Nothing in this document is intended to override or supersede the corporate separateness of local entities. Responsibility for local action and accountability remains with the local ExxonMobil-affiliate entities.