Spartan™ EP Series  

Mobil Industrial, United States

View the  SPARTAN EP Gear Oil

Gear Oil

Product Description

Spartan™ EP lubricants are a family of industrial extreme pressure gear lubricants. They are formulated with high quality mineral oils, which help reduce sludge formation helping to increase oil service life. Spartan EP oils contain a sulphur / phosphorus extreme pressure additive system that gives high load carrying ability and protection against wear. In addition these oils provide strong protection against corrosion of steel and copper containing alloys and resist foaming. Spartan EP oils have good water handling properties so that water rapidly separates from the oil for easy water elimination.

Spartan EP oils can be used in either splash or circulating systems. Spartan EP gear oils are suitable for use wherever industrial gear oil is required. Spartan EP grades are suitable for the lubrication of heavily loaded enclosed gear sets including spur, helical and bevel designs and provide protection in applications where shock loading occurs. Spartan EP may also be used in worm gears where specified. They may also be used for lubrication of plain bearings, and in rolling contact (anti-friction) bearings.


Features and Benefits

Spartan EP oils enjoy a reputation for quality and consistency, as well as the ability to handle a variety of tough gear applications. They are manufactured with high quality mineral stocks and a specially chosen additive system.  Spartan EP lubricants are manufactured under the highest level of quality assurance and control in our modern blending facilities.

Spartan EP gear oils offer the following benefits:

  • EP wear protection of gears and bearings
  • Resistance to sludge formation leads to outstanding system cleanliness
  • Very good oxidation resistance for long oil charge life
  • Very good demulsibility to ease water removal



Spartan EP gear oils are used in a wide range of industrial spur, helical, bevel and steel-on-steel worm gearing.

Specific applications include:

  • Drives for conveyers, agitators, dryers, fans, mixers, presses, pulpers, pumps, screens, extruders, oil well pumps
  • Industrial bearings- journal and rolling contact, especially operating at low speeds and high loads


Specifications and Approvals

Spartan EP Series meets or exceeds the following industry specifications:Spartan EP 150Spartan EP 220Spartan EP 320Spartan EP 460
DIN 51517-3: 2009-06XXXX
ISO 12925-1 Type CKDXXX 
ISO 12925-1 Type CKC   X


Typical Properties

Spartan EP150220320460
ISO Viscosity Grade150220320460
Viscosity, ASTM D 445    
mm²/s @ 40ºC150220320460
mm²/s @ 100ºC14.719.024.130.6
Viscosity Index, ASTM D 227097979796
Pour Point, ºC, ASTM D 97-24-24-24-15
Flash Point, ºC, ASTM D 92230240240240
Density @15.6 ºC, ASTM D 4052, kg/l0.890.890.900.90
Timken OK Load, ASTM D 2782, lb65656565
4-Ball EP test, ASTM D 2783,    
Weld Load, kg200250250250
Load Wear Index, kgf47484848
FZG Scuffing, DIN 51354, Fail Stage    
Rust protection, ASTM D 665, Sea WaterPassPassPassPass
Copper Strip Corrosion, ASTM D 130, 3 hrs @ 100ºC1B1B1B1B
Demulsibility, ASTM D 1401, Time to 3ml emulsion, minutes @ 82ºC30303030


Health and Safety

Based on available information, this product is not expected to produce adverse effects on health when used for the intended application, following the recommendations provided in the Material Safety Data Sheet (MSDS). MSDSs are available upon request through your sales contract office, or via the Internet on 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 ExxonMobil, Mobil logo and Spartan are trademarks of Exxon Mobil Corporation, or one of its subsidiaries. Due to continual product research and development, the information contained herein is subject to change without notification. Typical Properties may vary slightly. All products may not be available locally. © 2001 Exxon Mobil Corporation. All rights reserved.


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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.