Mobiltemp 78  

Mobil Grease, Egypt

High Temperature Grease

Product Description

Mobiltemp 78 is a clay thickened high temperature grease based on a heavy viscosity mineral base oil. It is formulated to provide low volatility, oxidation resistance and excellent structural stability at high temperatures, resistance to water washing and good anti-wear performance under heavy loads and low speeds.


Features and Benefits

  • Superior high temperature performance
  • Will not soften and leak from bearings
  • Good wear protection
  • Good resistance to water washing and steam
  • Extended relubrication intervals
  • Lead, chlorine and nitrite free



Mobiltemp 78 is recommended for the lubrication of plain and anti-friction bearings in applications such as oven conveyor or kiln bearings operating at low speed and high temperature or under cycling conditions from ambient to high temperatures. The greases will not soften and leak under high temperature conditions or harden excessively on cooling.

Mobiltemp 78 is also suitable for the lubrication of cams, ways and other sliding machine elements. The recommended operating temperature range is 0 to 170ºC with appropriate relubrication intervals.


Typical Properties

Mobiltemp 78Test MethodUnit 
CMCS Code  970582
Color  Gray-Black
Kinematic Viscosity @ 100ºCASTM D 445cSt.30.6(min) - 32.7(max)
Dropping PointASTM D 2265ºC300
Penetration Consistency Change Roll StabilityASTM D 1813mm-1385 (max)
Penetration, Unworked 25ºCASTM D 217mm-1325
Penetration, Worked 60 Double Strokes 25ºCASTM D 217mm-1325
Copper Strip CorrosionASTM D 4048none1B (max)
4 Ball Wear, Scar DiameterASTM D 2266mm0.5
1 Wet Roll Stability, Penetration changeASTM D 1813 (mod)mm-1-60
Penetration, change from 60x to 100,000xASTM D 217mm-150
Weld Point, 4 Ball EPASTM D 2596kg200
Load Wear Index, 4 Ball EPASTM D 2596kgf50
Steel Corrosion, 3h @ 120ºCM 1625RatingPass (min)


Health and Safety

Based on available information, this product is not expected to produce adverse effects on health when used for the intended application and the recommendations provided in the Material Safety Data Sheet (MSDS) are followed. MSDS's are available upon request through your sales contract office, or via the Internet. This product should not be used for purposes other than its intended use. If disposing of used product, take care to protect the environment.

The Mobil logotype, the Pegasus design and Mobiltemp are trademarks of ExxonMobil Corporation, or one of its subsidiaries.

ExxonMobil Egypt (S.A.E.)
1097 Cornish El-Nil, Garden City, Cairo, Egypt

+ 20 2 795 4850/60

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 
ExxonMobil is comprised of numerous affiliates and subsidiaries, many with names that include Esso, Mobil, or ExxonMobil. Nothing in this document is intended to override or supersede the corporate separateness of local entities. Responsibility for local action and accountability remains with the local ExxonMobil-affiliate entities.