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Mobilgear 600 XP Series

Gear Oil

Product Description

The Mobilgear 600 XP Series are extra high performance gear oils having outstanding extreme pressure characteristics and load-carrying properties, intended for use in all types of enclosed gear drives with circulation or splash lubrication systems. Mobilgear 600 XP Series is designed to stay ahead of the changing needs of gearbox technology. Gearbox technology design trends are towards smaller units with similar power throughput. This increase in power density places increased demands on gear oils. Mobilgear 600 XP Series oils are formulated to meet the stress by providing extra protection for gears, bearings and seals.

Mobilgear 600 XP Series is formulated to protect gear teeth from wear at its earliest stages. Microscopic wear, called micropitting, can lead to significant gear tooth damage. Mobilgear 600 XP Series exceeds the industry requirement for bearing wear protection. In fact, Mobilgear 600 XP Series provides up to 15 times the wear protection as measured by the industry standard FAG FE 8 test. Mobilgear 600 XP Series’ balanced formulation is able to provide maximum wear and corrosion protection while maintaining compatibility with common gearbox seal materials. Mobilgear 600 XP helps to maintain gearbox seal integrity thereby preventing oil leaks and keeping contamination out. By protecting the gears, bearings and seals, Mobilgear 600 XP can improve equipment reliability and increase productivity.

Mobilgear 600 XP Series oils are recommended for industrial spur, helical and bevel enclosed gears with circulation or splash lubrication, operating at bulk oil temperatures up to 100ºC. They are particularly suitable for gear sets working under heavy or shock loads. Mobilgear 600 XP oils also find broad application in marine gearing applications. They may also be used in non-gear applications include highly loaded and slow speed plain and rolling contact bearings.


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:

FeaturesAdvantages and Potential Benefits
Enhanced gear wear protection from micropittingLess gear and bearing wear resulting in less unexpected downtime
Reduced debris denting from generated wear particlesUp to 22% improvement in bearing life reducing bearing replacement costs and improving productivity
Improved bearing wear protectionImproved bearing life resulting in higher productivity
Outstanding compatibility with a range of seal materialsReduced leakage, oil consumption and contamination ingress helping to reduce maintenance, extend gearbox reliability and higher productivity
Excellent resistance to oil oxidation and thermal degradationHelps extend lubricant life with lower lubricant and lubrication costs and reduced scheduled downtime.
High resistance to sludge and deposit formationCleaner systems and reduced maintenance
Wide range of applicationsFewer 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 alloysExcellent protection of machine parts, with reduced maintenance and repair costs
Resistance to foaming and emulsion formationEffective 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:


Specifications and Approvals

Mobilgear 600 XP meets or exceeds the requirements of:Mobilgear 600 XP 68Mobilgear 600 XP 100Mobilgear 600 XP 150Mobilgear 600 XP 220Mobilgear 600 XP 320Mobilgear 600 XP 460Mobilgear 600 XP 680
AGMA 9005-E022 EP3 EP4 EP5 EP6 EP7 EP-
DIN 51517-3: 2009-06XXXXXXX
ISO 12925-1 TypCKD 68CKD 100CKD 150CKD 220CKD 320CKC 460CKC 680


Mobilgear 600 XP has the following builder approvals:Mobilgear 600 XP 68Mobilgear 600 XP 100Mobilgear 600 XP 150Mobilgear 600 XP 220Mobilgear 600 XP 320Mobilgear 600 XP 460Mobilgear 600 XP 680
SIEMENS AG Flender gear units, T 7300, Table A-a, Flender Code No. A17A16A15A14A13A12
SIEMENS AG Flender gear units, T 7300, Table E-am, Flender Code No.  E76    
Mueller Weingarten DT 55 005 CLP 100CLP 150CLP 220CLP 320CLP 460 


Typical Properties

Mobilgear 600 XP68100150220320460680
ISO Viscosity Grade68100150220320460680
Viscosity, ASTM D 445       
mm²/s @ 40ºC68100150220320460680
mm²/s @ 100ºC8.811.214.719.024.130.639.2
Viscosity Index, ASTM D 2270101979797979690
Pour Point, ºC, ASTM D 97-27-24-24-24-24-15-9
Flash Point, ºC, ASTM D 92230230230240240240285
Density @15.6 ºC, ASTM D 4052, kg/l0.880.880.890.890.900.900.91
FZG Micropitting, FVA 54, Fail Stage / Rating 10 / High10 / High10 / High10 / High10 / High10 / High
FE 8 wear test, DIN 51819-3, D7,5/80-80. Roller wear, mg2222222
Timken OK Load, ASTM D 2782, lb65656565656565
4-Ball EP test, ASTM D 2783,       
Weld Load, kg200200250250250250250
Load Wear Index, kgf47474748484848
FZG Scuffing, Fail Stage       
A/16.6/90 12+12+12+12+12+12+
Rust protection, ASTM D 665, Sea WaterPassPassPassPassPassPassPass
Copper Strip Corrosion, ASTM D 130, 3 hrs @ 100ºC1B1B1B1B1B1B1B
Demulsibility, ASTM D 1401, Time to 3ml emulsion, minutes @ 82ºC30303030303030
Foam Test, ASTM D 892, Tendency/Stability, ml/ml Sequence 10/00/00/00/00/00/00/0
Sequence 230/030/030/030/030/030/030/0


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 This product should not be used for purposes other than its intended use. If disposing of used product, take care to protect the environment.

All trademarks used herein are trademarks or registered trademarks of Exxon Mobil Corporation or one of its subsidiaries unless indicated otherwise. 


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