ExxonMobil Aviation Lubricants Introduces Mobilgrease 33

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 3-33B.

To learn more about Mobilgrease 33, customers can contact their
local ExxonMobil Aviation Lubricants representative or visit
www.exxonmobil.com/lubes/aviation.

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.