Castrol Aero™ 40 is a premium hydraulic shock strut fluid developed for use in aircraft landing gear systems (oleo struts) where superior stability, protection, and performance are required. Formulated with high-quality mineral oils and advanced additives, Aero 40 ensures smooth landings, reliable energy absorption, and extended component life in both commercial and military aircraft.

Performance benefits include:

• Straw yellow fluid specifically designed for landing gear shock struts

• Excellent corrosion and rust protection, safeguarding components from water and environmental exposure

• Superior thermal and oxidative stability, preventing sludge, varnish, and deposit formation

• Consistent performance across wide temperature ranges, ensuring reliability in extreme hot and cold conditions

• Meets stringent aviation specifications, trusted by OEMs and maintenance crews worldwide

Packaged in a 5-gallon pail, this bulk size is ideal for aviation maintenance shops, MRO facilities, fleet operators, and defense contractors needing reliable supply for landing gear servicing. Castrol Aero 40 provides smooth operation, reduced wear, and dependable performance in demanding aviation environments.