AeroShell Grease 33AeroShell Grease 33 is a synthetic universal airframe grease composed of a lithium complex thickened synthetic base
oil with corrosion and oxidation inhibitors and load carrying additives.
The useful operating temperature range is –73°C to +121°C.
· AeroShell Grease 33 can be used for routine lubrication in
· For many years aircraft operators have been seeking to
applications where MIL-PRF-23827C is specified on aircraft
rationalise the greases used on aircraft and to reduce the
manufactured by McDonnell Douglas, Airbus, BAe Regional
number of different greases in their inventories. Recently
Aircraft, Canadair, Lockheed, Embraer, Fokker and Gulfstream
Boeing began research on a new, general purpose, corrosion-
(except for wheel bearings, applications above 121°C and
inhibiting grease. The aim was for a non-clay based grease
sliding applications requiring molybdenum disulphide).
that would provide longer life for components and
Other aircraft manufacturers are evaluating AeroShell Grease
mechanisms and possess improved wear and corrosion
33 with the aim of approving it for use on their aircraft.
resistance. This led to the introduction of the new Boeing
Operators should regularly check with these manufacturers for
Owing to the wide range of operating temperatures, loads
Use of AeroShell Grease 33 can provide operators with the
and other environmental conditions required for various
aircraft components, several different types of grease with
different desirable properties are used during routine
lubrication of aircraft components. Boeing, in developing their
Less chance of product mis-application.
BMS 3-33B specification, took account of the properties of the
Specifications, Approvals & Recommendations
different grease types used on aircraft and wrote a
specification for a grease which would provide improved
performance and which could be used in the widest possible
· AeroShell Grease 33 is approved to BMS 3-33B and offers the For a full listing of equipment approvals and recommendations,
improved performance properties required by this
please consult your local Shell Technical Helpdesk, or the OEM
· AeroShell Grease 33 can be used for routine lubrication on Compatibility & Miscibility
Boeing aircraft where MIL-PRF-23827C or BMS 3-24 is
· AeroShell Grease 33 contains a synthetic oil and must not be
specified. AeroShell Grease 33 can also be used in some
used with incompatible seal materials.
applications on Boeing aircraft which require use of MIL-G-
21164. Other applications on Boeing aircraft which require
use of MIL-G-21164 and other greases are being reviewed
and in due course Boeing will issue details of the full range of
applications. For the current status, refer to the latest issue of
Boeing Service Letter "BMS 3-33B General Purpose Aircraft
Bomb Oxidation pressure drop from 758 kPa (110 psi) @99°C
Bomb Oxidation pressure drop from 758 kPa (110 psi) @99°C
These characteristics are typical of current production. Whilst future production will conform to Shell's specification, variations in
Health, Safety & Environment· Health and Safety
Guidance on Health and Safety is available on the appropriate Material Safety Data Sheet, which can be obtained from
Take used oil to an authorised collection point. Do not discharge into drains, soil or water.
Advice on applications not covered here may be obtained from your Shell representative.
Mayo Medical Laboratories Test Catalog [Previous Drugs Detectable by Drug Screen This test specifically screens for each of the drugs listed below. Results for drugs indicated by # are quantitative in plasma, all others are qualitative. All results are qualitative in urine and gastric fluid. Plasma (and Gastric) Analgesics: Acetaminophen (Tylenol )# Acetylsalicylate