Mobil DTE Named SeriesPremium Performance Circulating Lubricants

Product DescriptionThe Mobil DTE Oil Named Series of lubricants are premium performance circulating lubricants designed forapplications including steam and hydro turbine sets and other systems where long lubricant service life isrequired. Mobil DTE Oil Named Series lubricants are formulated from highly refined base stocks and an additivesystem which provide an extremely high level of chemical and thermal stability, rapid and complete separationfrom 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 ensuresminimum variation of film thickness with temperature and minimum power loss during the warm up period. Thesegrades have excellent air release properties which allow entrained air to separate, thus avoiding pump cavitationand 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 OilNamed lubricants are used widely in steam turbines and hydroturbines with splash, bath and ring-oilingarrangements, 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 andparallel shaft gearing. They have also been used successfully in some gas turbine and rotary air compressorapplications, as well as vacuum pumps. Their reputation is based on many decades of successful service andsatisfied users.

Features and BenefitsThe Mobil DTE family of products is well known and highly regarded worldwide based on their outstandingperformance and the RandD expertise and the global technical support which stand behind the brand. The highlyversatile performance of Mobil DTE Oil Named oils has made them the oil of choice for a multitude of industrialequipment applications around the world.

Mobil DTE Named oils enjoy an excellent reputation in the lubrication of the circulation systems of steam turbinesand hydro turbines, including geared turbines, plus a wide variety of ancillary equipment. As designs changeand increase in severity, it is the challenge of our formulation scientists to understand the effect of these changeson 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 stocksfor outstanding oxidation stability, plus a unique additive combination to ensure the excellent, wide-rangingperformance of these oils. A review of the features, advantages and potential benefits of the product are shownbelow.

Advantages and Potential BenefitsFeaturesLong oil charge life in circulation systems and reducedoil replacement costs

Very high level of chemical and thermal stability andresistance to sludging and varnishing

Less unplanned downtime and reduced maintenancecosts

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Advantages and Potential BenefitsFeaturesImproved operating efficiencyExcellent water release propertiesLonger equipment life, reduced maintenance anddowntime

Very good antiwear protection

Longer equipment life, reduced maintenance anddowntime

Long term protection against rust and corrosion

Avoids pump cavitation, noisy and erratic operationHigh resistance to foaming and excellent air releaseRationalize inventory, reduced inventory costsHighly versatile - multiple applications

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

• Land-based and marine steam turbine, hydro turbine and some gas turbine circulation systems, includingpumps, 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 and inert gases, and with discharge temperatures not

exceeding 150ºC

Specifications and Approvals

Mobil DTE HeavyMobil DTE HeavyMedium

Mobil DTE LightMobil DTE Named Series meets orexceeds the following industryspecifications:

XXXDIN 51515-7XXXDIN 51517XXXDIN 51524-XGE GEK 46506D

-XGE GEK 27070XGE GEK 28143A

Typical Properties

Mobil DTE HeavyMobil DTE HeavyMedium

Mobil DTE LightMobil DTE Named Series

1006832ISO Viscosity GradeViscosity, ASTM D 445

95.165.131.0cSt @ 40ºC10.98.75.5cSt @ 100ºC9295102Viscosity Index, ASTM D 2270-24-27-36Pour Point, ºC, ASTM D 97237223218Flash Point, ºC, ASTM D 92

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Mobil DTE HeavyMobil DTE HeavyMedium

Mobil DTE LightMobil DTE Named Series

0.880.870.85Density @15 ºC kg/l, ASTM D 4052280035005000TOST, ASTM D 943, Hours to 2 NN10108FZG Scuffing, D5182, Fail Stage

Rust Prevention, ASTM D 665,PassPassPassDistilled WaterPassPassPassSea Water302015Water Seperability, ASTM D 1401, Min. to

3 ml emulsion @ 54ºC1B1B1BCopper Strip Corrosion, ASTM D 130, 3 hrs

@ 121ºC50/050/020/0Foam Test, ASTM D 892, Seq

ITendency/stability, ml/ml842Air Release, ASTM D 3427, 50ºC, min.

PrecautionsMOBIL DTE NAMED SERIES is manufactured from high quality petroleum base stocks, carefully blended withselected additives. As with all petroleum products, good personal hygiene and careful handling should alwaysbe practiced. Avoid prolonged contact to skin, splashing into the eyes, ingestion or vapour inhalation. Pleaserefer to our Imperial Oil Material Safety Data Sheet for further information.

Note: This product is not controlled under Canadian WHMIS legislation.

The Mobil logotype, the Pegasus design and Delvac are trademarks of ExxonMobil Corporation, or one of itssubsidiaries.