Mobil Delvac™ Xtreme Grease

Mobil Delvac™ Xtreme grease

Mobil Delvac™ Xtreme Grease is an extra high performance extreme-pressure grease. It is an NLGI 2 grade and is manufactured with a proprietary, high-temperature lithium complex thickener system. It exhibits excellent resistance to softening and provides good adhesion and cohesion. An extreme-pressure additive provides excellent protection against wear and shock loads, while additional additives enhance resistance to high-temperature oxidation and protection against rust. Other formulation features provide very good resistance to water wash, and long service in bearings operating at high temperatures. This heavy-duty, severe-service grease has outstanding structural stability and chemical stability, will not corrode steel or copper bearing alloys, and is compatible with conventional seal materials.


Mobil Delvac Xtreme Grease is recommended for use in heavy-duty trucks, especially hinge and bucket pins, U-joints, and fifth wheels. It is also recommended for construction and mining sector applications, particularly for the lubrication of plain and antifriction bearings in contractor and mining vehicles working under severe operating and weather conditions. Mobil Delvac Xtreme Grease is also recommended for use in heavily loaded industrial bearings. The recommended application temperature range is -20°C to +175°C.


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Features and Benefits

Mobil Delvac Xtreme Grease is designed by our formulation technologists specifically to meet the needs of customers with heavily loaded equipment that requires high extreme-pressure/antiwear performance and stay-in-place performance even in tough conditions where water wash, high sliding, and high temperature conditions are present.



Advantages and Potential Benefits

Excellent resistance to water, including spray off and wash out

Maintains excellent lubrication properties and protects equipment in conditions of water contamination

Outstanding extreme-pressure and antiwear protection

Lower maintenance costs and less unanticipated downtime

Better stay-put properties at high temperatures

Excellent performance in high shear, high load applications, especially where grease re-supply is limited

Excellent resistance to rust and corrosion

Protects equipment in the presence of water for reduced maintenance and longer equipment life



Recommended by Imperial Oil for use in:

     •  Heavy-duty trucks, especially hinge and bucket pins, U-joints, and fifth wheels

     •  Mining and construction equipment

     •  Highly loaded plain and antifriction industrial bearings


Properties and Specifications





Color, Visual


Corrosion Preventive Properties, Rating, ASTM D1743


Dropping Point, °C, ASTM D2265


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


Penetration, 60X, 0.1 mm, ASTM D217


Water Washout, Loss @ 79 C, wt%, ASTM D1264


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


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


Viscosity @ 100 C, Base Oil, mm2/s, ASTM D445


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


Viscosity Index, ASTM D2270



Health and safety

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

Lubricant gallons in workshop

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