The Mobil brand lubricants designated as SHC are recognized and appreciated around the world for innovation and outstanding performance. These molecular design PAO synthetic products, pioneered by our research scientists, symbolize the continuing commitment to using advanced technology to provide outstanding products. A key factor in the development of the Mobilgear SHC XMP Series was the close contacts between our scientists and application specialists with key OEMs to ensure that our product offerings will provide exceptional performance with rapidly evolving industrial gear designs and operation.

Our work with equipment builders has helped confirm the results from our own laboratory tests showing the exceptional performance of the Mobilgear SHC XMP Series lubricants. Not least among the benefits shown in work with OEMs is the ability to resist micropitting wear which can occur with some highly loaded, case-hardened gearing applications. This cooperative work also demonstrated the all-round balanced performance benefits for the new Mobilgear SHC XMP technology, including a wide temperature range of application.

To address the issue of micropitting gear wear, our product formulation scientists designed a proprietary combination of additives which would resist traditional gear wear mechanisms as well as protecting against micropitting. Our formulators chose proprietary PAO synthetic base oils to provide exceptional oil life and deposit control and resistance to thermal/oxidative and chemical degradation, as well as the balance of the performance features. The wax-free nature of the synthetic base oil also provides low temperature fluidity characteristcs unmatched by mineral products and is a key benefit for remote, low ambient, applications. The Mobilgear SHC XMP Series lubricants offer the following benefits:

Features Advantages and Potential Benefits
Superb protection from micropitting fatigue wear as well as high resistance to traditional scuffing wear Extended gear and bearing life in enclosed gear drives operating under extreme conditions of load, speed and temperature
Reduced unexpected downtime and less maintenance - especially critical for difficult to access gearboxes.
Excellent resistance to degradation at high temperatures Extended oil life and drain intervals reduced oil consumption and manpower costs
Low traction PAO base stocks for improved gear efficiency Reduced energy consumption and lower operating temperatures
High viscosity index base stocks reduce viscosity change with temperature Ability to operate at both high and low temperatures: especially critical in remote applications with no oil heating or cooling
Excellent resistance to rust and corrosion and very good demulsibility Smooth, trouble-free operation at high temperatures or in water-contaminated applications
Excellent compatibility with soft metals
Outstanding filter life, even in presence of water Fewer filter changes and reduced maintenance costs
Excellent compatibility with common gearbox materials of construction and with mineral-based gear oils Simple conversion from many mineral products


Application Considerations: While the Mobilgear SHC XMP Series are compatible with mineral oil based products, admixture may detract from their performance. Consequently it is recommended that before changing a system to one of the Mobilgear SHC XMP Series, it should be thoroughly cleaned out and flushed to achieve the maximum performance benefits.

Mobilgear SHC XMP Series supreme performance, fully synthetic industrial gear oils are designed to provide optimum equipment protection and oil life even under extreme conditions. They are especially formulated to resist micropitting of modern, case hardened gearing and can operate in both high and low temperature environments. Typical applications include:

  • Wind turbines, especially highly loaded and shock loaded units, remotely located units and extreme temperature environments
  • Plastic extruder gearboxes
  • Modern, highly loaded gearboxes used in the paper, steel, oil, textile, lumber and cement industries where gear protection and optimum oil life are required.


Mobilgear SHC XMP Series meets or exceeds the requirements of: 320 460
AGMA 9005-EO2 EP X X
DIN 51517-3, 2009-06 X X

Typical Properties

Mobilgear SHC XMP Series 320 460
ISO Viscosity Grade 320 460
Viscosity, ASTM D 445
cSt @ 40º C 335 460
cSt @ 100º C 38.3 48.7
Viscosity Index, ASTM D 2270 164 166
Pour Point, ºC, ASTM D 97 -38 -36
Flash Point, ºC, ASTM D 92 242 232
Specific Gravity @15.6º C kg/l, ASTM D 4052 0.86 0.863
FZG Micropitting, FVA Proc No. 54,
Fail Stage 10 10
GFT-Class High High
FZG Scuffing, DIN 51345 (mod) A/16.6/90, Fail Stage 14+ 14+
4-Ball Wear test, ASTM D 4172, mm (Mod 1,800 RPM, 20kg, 54º C, 60 Minutes) 0.25 0.25
Rust protection, ASTM D665, Sea Water Pass Pass
Water Separability, ASTM D 1401,Time to 40/37/3 at 82º C, minutes 10 10
Foaming Characteristics, ASTM D 892,Seq. II, Tendency/Stability, ml/ml 0/0 0/0


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