Bull gear

Mobilgear™ 600 XP Series

Mobilgear™ 600 XP Series oils are formulated to help you stay ahead of the changing needs of gearbox technology.

Our Mobilgear™ 600 XP Series advanced technology lubricants are designed to protect gears, bearings and seals in all types of enclosed-gear drives with circulation or splash lubrication systems. These industrial gear oils exceed the industry requirement for bearing wear protection as measured by the industry standard FAG FE 8 test.

These gearbox oils are formulated for outstanding extreme-pressure characteristics and load-carrying properties in a broad range of industrial and marine equipment. Additionally, these oils help to reduce:

  • Gear and bearing wear by protecting against micropitting
  • Oil leakage through outstanding seal compatibility
  • Unscheduled downtime due to excellent resistance to oxidation and thermal degradation

  • hydraulics bearing

    Long bearing life can help boost productivity by limiting maintenance downtime and minimizing bearing replacement costs

  • gears

    Helps limit equipment replacement costs through exceptional protection against wear and micropitting

  • oil drop

    Helps minimize leaks, oil consumption and contamination through excellent seal compatibility

  • Thermal conductivity

    15x the industry requirement for wear protection*

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Product series information

   Mobilgear™ 600 XP Series performance profile 1.281 MB/pdf
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Mobilgear™ 600 XP Series offers 7 lubricant grades

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Technical resources

Industrial gear oil looks milky or hazy

Mobil ™ industrial lubrications can help you learn what to do if your industrial gear oil appears milky or hazy.

Expert answers, Article

Using hydraulic oil in gear applications

Learn what can happen when using hydraulic oil instead of gear oil in gear applications.

Expert answers, Article

Mobil ServSM Lubricant Analysis helps extend oil drain intervals and reduce operational costs*

Learn how implementing routine Mobil ServSM Lubricant Analysis for its electric shovels helped a Colombian coal mining company extend oil drain intervals and reduce maintenance workloads.

Success stories, PDF

Micropitting lead macro problems

Discover how choosing the right lubricant to prevent micropitting can save you from costly equipment repairs.

Technical topics, PDF

All Mobilgear™ 600 XP Series resources

Features and Benefits

Mobilgear 600 XP Series products are a leading member of the Mobil brand of industrial lubricants that enjoy a reputation for innovation and high performance capability. These mineral-based products are designed to provide high quality industrial gear oils, meeting the latest industry standards and with high versatility to lubricate a broad range of industrial and marine equipment.

Mobilgear 600 XP Series products offer the following features and potential benefits:

Features Advantages and Potential Benefits
Enhanced gear wear protection from micropitting Less gear and bearing wear resulting in less unexpected downtime
Reduced debris denting from generated wear particles Up to 22% improvement in bearing life reducing bearing replacement costs and improving productivity
Improved bearing wear protection Improved bearing life resulting in higher productivity
Outstanding compatibility with a range of seal materials Reduced leakage, oil consumption and contamination ingress helping to reduce maintenance, extend gearbox reliability and higher productivity
Excellent resistance to oil oxidation and thermal degradation Helps extend lubricant life with lower lubricant and lubrication costs and reduced scheduled downtime.
High resistance to sludge and deposit formation Cleaner systems and reduced maintenance
Wide range of applications Fewer grades of lubricant required because of wide range of application, leading to lower purchase and storage costs and less danger of using wrong lubricant
Optimised resistance to rust and corrosion of steel and corrosion of copper and soft metal alloys Excellent protection of machine parts, with reduced maintenance and repair costs
Resistance to foaming and emulsion formation Effective lubrication and problem free operation in the presence of water contamination or in equipment prone to oil foaming



Mobilgear 600 XP lubricants are used in a wide range of industrial and marine applications, especially spur, helical, bevel and worm gearing. Specific applications include:

  • Industrial gearing for conveyers, agitators, dryers, extruders, fans, mixers, presses, pulpers, pumps (including oil well pumps), screens, extruders and other heavy duty applications
  • Marine gearing including main propulsion, centrifuges, deck machinery such as winches, windlasses, cranes, turning gears, pumps, elevators and rudder carriers
  • Non-gear applications include shaft couplings, screws and heavily loaded plain and rolling contact bearings operating at slow speeds.
  • Mobilgear 600 XP 100, 150, 220, 320, 460, and 680 are approved by Siemens AG for use in Flender gearboxes


Specifications and Approvals

This product meets or exceeds the requirements of:








AGMA 9005-E02-EP







DIN 51517-3:2009-06








ISO L-CKC (ISO 12925-1:1996)


ISO L-CKD (ISO 12925-1:1996)





Mobilgear 600 XP has the following builder approvals: Mobilgear 600 XP 68 Mobilgear 600 XP 100 Mobilgear 600 XP 150 Mobilgear 600 XP 220 Mobilgear 600 XP 320 Mobilgear 600 XP 460 Mobilgear 600 XP 680
SIEMENS AG Flender gear units, T 7300, Table A-a, Flender Code No.   A17 A16 A15 A14 A13 A12
Mueller Weingarten DT 55 005   CLP 100 CLP 150 CLP 220 CLP 320 CLP 460  


Typical Properties

Mobilgear 600 XP Mobilgear 600 XP 68 Mobilgear 600 XP 100 Mobilgear 600 XP 150 Mobilgear 600 XP 220 Mobilgear 600 XP 320 Mobilgear 600 XP 460 Mobilgear 600 XP 680
ISO Viscosity Grade 68 100 150 220 320 460 680
Viscosity, ASTM D 445              
mm²/s @ 40ºC 68 100 150 220 320 460 680
mm²/s @ 100ºC 8.8 11.2 14.7 19.0 24.1 30.6 39.2
Viscosity Index, ASTM D 2270 101 97 97 97 97 96 90
Pour Point, ºC, ASTM D 97 -27ºC
Flash Point, ºC, ASTM D 92 230 230 230 240 240 240 285
Density @15.6 ºC, ASTM D 4052, kg/l 0.88 0.88 0.89 0.89 0.90 0.90 0.91
FZG Micropitting, FVA 54, Fail Stage / Rating   10 / High 10 / High 10 / High 10 / High 10 / High 10 / High
FE 8 wear test, DIN 51819-3, D7,5/80-80. Roller wear, mg 2 2 2 2 2 2 2
Timken OK Load, ASTM D 2782, lb 65 65 65 65 65 65 65
4-Ball EP test, ASTM D 2783,              
Weld Load, kg 200 200 250 250 250 250 250
Load Wear Index, kgf 47 47 47 48 48 48 48
FZG Scuffing, Fail Stage              
A/8.3/90 12+ 12+ 12+ 12+ 12+ 12+ 12+
A/16.6/90   12+ 12+ 12+ 12+ 12+ 12+
Rust protection, ASTM D 665, Sea Water Pass Pass Pass Pass Pass Pass Pass
Copper Strip Corrosion, ASTM D 130, 3 hrs @ 100ºC 1B 1B 1B 1B 1B 1B 1B
Demulsibility, ASTM D 1401, Time to 3ml emulsion, minutes @ 82ºC 30 30 30 30 30 30 30
Foam Test, ASTM D 892, Tendency/Stability, ml/ml Sequence 1 0/0 0/0 0/0 0/0 0/0 0/0 0/0
Sequence 2 30/0 30/0 30/0 30/0 30/0 30/0 30/0


Health and Safety

Based on available information, this product is not expected to produce adverse effects on health when used for the intended application, 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 http://www.exxonmobil.com. This product should not be used for purposes other than its intended use. If disposing of used product, take care to protect the environment.