Leading multipurpose helicopter grease. Composition: Calcium soap thickened mineral oil base. Inhibited against corrosion and oxidation, it is compounded with special anti-rust additives, and gives outstanding protection against fretting and moisture corrosion. Useful temperature range is -65°F (-54°C) to +200°F (+93°C). AEROSHELL Grease 14 is approved by all leading helicopter manufacturers. It is recommended for most helicopter main and tail rotor bearings, and is widely used as a general purpose helicopter grease. Qualified under MIL-G-25537C specification.