ExxonMobil Aviation Lubricants Introduces Mobilgrease 33

    Airlines Can Now Choose Multi-Purpose Grease with 100 Percent
Polyalphaolefin Base Oil Technology to Consolidate Inventory Used for Airframe
Components and Mechanisms

    FAIRFAX, VA., October 15 /CNW/ - ExxonMobil Aviation Lubricants today
introduced Mobilgrease 33, multi-purpose airframe grease that meets
performance requirements from Boeing, Airbus, SAE and the U.S. military. The
new product can be used in up to 95 percent of Boeing commercial airframe
grease application points and in the majority of Airbus commercial airframe
grease application points.

    Mobilgrease 33 was developed in response to demand from airlines for a
single, general-purpose grease with excellent corrosion and wear resistance,
and operability at very low temperatures. That, in turn, would allow the
airlines to consolidate their inventory of greases, simplify maintenance, and
reduce labor costs.

    "Hundreds of airframe components and mechanisms require routine
lubrication to perform properly," says Mike Hawkins, global marketing manager,
ExxonMobil Aviation Lubricants. "Mobilgrease 33 reduces the need for multiple
greases while increasing the potential for extending equipment life."

    All greases are made from base oil, a thickener, and various additives to
enhance performance. What differentiates Mobilgrease 33 from other
low-temperature airframe greases is its base oil. It contains no esters and is
100 percent polyalphaolefin (PAO). Esters are compounds that are susceptible
to hydrolysis, which is a chemical reaction with water causing decomposition
and leading to the likely production of potentially corrosive acids.

    Mobilgrease 33's proprietary PAO base oil eliminates the need for these
problem-causing compounds, allowing ExxonMobil to offer a multi-purpose
product that should outperform other airframe greases containing esters. A
patent for the base oil has been applied for by ExxonMobil and is pending.

    In addition to the 100 percent PAO base oil, Mobilgrease 33 contains a
lithium complex thickener and premium additives to provide excellent low
temperature performance and corrosion and wear resistance.

    Mobilgrease 33 was added to Boeing's BMS 3-33B Qualified Products List
(QPL) on December 5, 2006. The grease meets Airbus AIMS09-06-02 and SAE AMS
3052 requirements (release of specifications is pending). It is approved
against MIL-PRF-23827C, Type I, and is compatible with grease qualified to BMS

    To learn more about Mobilgrease 33, customers can contact their local
ExxonMobil Aviation Lubricants representative or visit

    ExxonMobil Aviation Lubricants is a leading supplier of jet oils,
hydraulic oil, piston oils, greases and specialty fluids. Its products are
delivering results "on orbit" in the International Space Station, and on earth
in the aircraft of many airlines and private pilots. The global organization
provides technical expertise and service for customers worldwide.

    ExxonMobil and Mobil are trademarks of Exxon Mobil Corporation (NYSE:  
XOM) or one of its subsidiaries.

    ExxonMobil is comprised of numerous affiliates and subsidiaries, many
with names that include Esso, Mobil, Exxon 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-affiliated entities.


For further information:

For further information: Marketing Communications, Inc. Carol Fisher,
1-703-450-3899 or ExxonMobil Media Line, 1-703-846-4467

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