Mobilgrease™ XTC

Mobil grease , Serbia


Product Description

Mobilgrease XTC is a high performance premium product designed for use in high-speed coupling applications. Mobilgrease XTC is formulated to provide low-bleed as well as high-temperature stability, properties critical to modern coupling lubrication and protection. The base oil and heavy duty additive package work to reduce friction wear from sliding tooth contact, providing rust and corrosion protection, as well as high temperature stability for this leading edge product.


ExxonMobil research scientists formulated Mobilgrease XTC to meet or exceed the requirements of modern high-speed gear and grid design couplings including the AGMA CG-3, CG-2, and CG-1specifications. This grease has shown excellent performance and protection in a wide variety of coupling applications covering a broad range of industries.


Based on its outstanding performance, this grease has become the product of choice for many coupling users. Mobilgrease XTC fully meets the performance requirements of major coupling manufacturers.


Features and Benefits

The Mobilgrease brand of products is well known and highly regarded world-wide based on their outstanding performance in addition to global technical support that stands behind Mobil Industrial Lubricants. The outstanding qualities of Mobilgrease XTC have made it the choice of many users, especially when performance is a key concern.


Mobilgrease XTC enjoys an excellent reputation in the lubrication of high speed and high temperature gear and grid coupling applications. Close contacts with original equipment manufacturers (OEMs) and end-users ensure that products such as Mobilgrease XTC will be available to meet critical application needs, both now and in the future.


Mobilgrease XTC was specifically designed for high-speed and high-temperature coupling applications, and offers the following advantages and potential benefits.



Advantages and Potential Benefits

Excellent resistance to oil separation

Helps reduce leakage, helping improve reliability and coupling protection

Excellent EP / Antiwear protection

Helps reduce coupling wear, even when misaligned helping to lower maintenance costs

Excellent high temperature stability

Long grease life and helping to extend intervals between relubrication

Good resistance to rust and corrosion

Maintains excellent grease performance even in tough aqueous environments



Application Considerations: Because Mobilgrease XTC is highly viscous and has adhesive agents to address coupling demands, use of hand- operated grease guns at low ambient temperatures without auxiliary heat is discouraged.


Mobilgrease XTC fully meets  AGMA Type CG-3 requirements for high-torque, high-misalignment spindle couplings and AGMA Type CG-2 requirements for high-speed flexible gear and grid couplings. Mobilgrease XTC also meets less demanding AGMA Type CG-1 requirements. Mobilgrease XTC maintains its excellent performance characteristics in ambient temperatures up to 120º C. It is not recommended for temperatures below -30º C. Mobilgrease XTC is used widely in industrial applications requiring the use of:

• Grid-type flexible couplings

• Gear-type flexible couplings


Specifications and Approvals


This product meets or exceeds the requirements of:





Properties and Specifications





Thickener Type

Grease - Lithium complex

Copper Strip Corrosion, 24 h, 100 C, Rating, ASTM D4048


Timken OK Load, lb, ASTM D2509


Corrosion Preventive Properties, Rating, ASTM D1743


Centrifugal Oil Separation, High G Force, 24 h, 50 C, vol%, ASTM D4425


Four-Ball Wear Test, Scar Diameter, mm, ASTM D2266


Color, Visual

Dark Brown

Penetration, Change from 60X to 10,000X, %, ASTM D217


Oxidation Stability, Pressure Drop, 100 h, kPa, ASTM D942


Four-Ball Extreme Pressure Test, Weld Point, kgf, ASTM D2596


Dropping Point, °C, ASTM D2265


Penetration, 60X, 0.1 mm, ASTM D217


Viscosity @ 40 C, Base Oil, mm2/s, ASTM D445



Health and safety

Health and Safety recommendations for this product can be found on the Material Safety Data Sheet (MSDS) @

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



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
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