Aeroshell 7 Aviation Grease

AeroShell Grease 7 is a multi-purpose synthetic ester aviation grease formulated for aircraft lubrication applications requiring reliable performance across a wide temperature range. It provides good load-carrying capability along with resistance to corrosion, oxidation, and water washout.

With a useful operating temperature range of -73°C to +121°C (-99°F to +250°F), AeroShell Grease 7 is particularly suited to aircraft applications exposed to very low temperatures. It is commonly used for highly loaded gears, actuator screw mechanisms, instruments, and general airframe lubrication. Shell identifies AeroShell Grease 7 as meeting MIL-PRF-23827C Type II.

AeroShell Grease 7 Features

• Multi-purpose aviation grease for a wide range of aircraft lubrication applications
• Synthetic ester base oil for low-temperature performance
• Useful operating temperature range of -73°C to +121°C (-99°F to +250°F)
• High load-carrying capacity for demanding lubrication applications
• Inhibited against corrosion and oxidation
• Good water washout resistance
• Approved to MIL-PRF-23827C Type II
• Clay-thickened formulation using Microgel technology

AeroShell Grease 7 Applications

AeroShell Grease 7 is designed for a broad range of aircraft lubrication requirements. Shell states that it satisfies nearly all airframe grease requirements for turbine-engine aircraft and also many piston-engine aircraft applications, provided seal compatibility requirements are met. Most civil aircraft manufacturers approve AeroShell Grease 7 as a general-purpose synthetic grease either by brand name or by specification.

Typical applications include:

• Highly loaded gears
• Actuator screw mechanisms
• Instruments
• General airframe lubrication
• Other aircraft components requiring a compatible MIL-PRF-23827C Type II grease

AeroShell Grease 7 Specifications

Important: AeroShell Grease 7 Is Type II

AeroShell Grease 7 is approved to MIL-PRF-23827C Type II. Type II greases use a clay-based thickener, while Type I greases use a soap-based thickener. Shell specifically cautions that Type I and Type II greases should not be mixed because different thickener systems can be incompatible.

When changing from another grease to AeroShell Grease 7, verify compatibility and follow the aircraft or equipment manufacturer's approved lubrication procedures.

AeroShell Grease 7 for Aircraft Maintenance

AeroShell Grease 7 is well suited to aircraft maintenance environments where a general-purpose aviation grease is required across a broad temperature range. Its particularly low minimum operating temperature makes it useful for applications exposed to extremely cold conditions, while its load-carrying and corrosion-resistant properties support a variety of airframe and component lubrication requirements.

Important: Always verify the required grease specification, application, seal compatibility, and lubrication procedure against the applicable aircraft or component manufacturer's maintenance documentation before use. Refer to the current AeroShell Technical Data Sheet and Safety Data Sheet for complete product information.

Frequently Asked Questions

What is AeroShell Grease 7 used for?

AeroShell Grease 7 is a multi-purpose aviation grease used for applications including highly loaded gears, actuator screw mechanisms, instruments, and general airframe lubrication.

What specification does AeroShell Grease 7 meet?

AeroShell Grease 7 is approved to MIL-PRF-23827C Type II. Shell also lists COMAC QPL-CMS-OL-302 approval.

What is the temperature range of AeroShell Grease 7?

The useful operating temperature range is -73°C to +121°C (-99°F to +250°F).

Is AeroShell Grease 7 synthetic?

Yes. AeroShell Grease 7 uses a synthetic ester base oil.

What type of thickener does AeroShell Grease 7 use?

AeroShell Grease 7 uses a clay-based Microgel thickener. It is classified as a Type II grease under MIL-PRF-23827C.

Can AeroShell Grease 7 be mixed with other greases?

Grease compatibility should always be verified before mixing products. In particular, Shell advises that clay-thickened Type II greases should not be mixed with soap-based Type I greases because the different thickener systems can be incompatible.