Castrol Aero™ 40 is a specialized aviation hydraulic shock strut fluid designed for use in aircraft landing gear systems (oleo struts). Manufactured with high-quality mineral base oils and advanced additives, Aero 40 ensures smooth strut operation, dependable performance, and long component life across a wide range of operating conditions.

Performance benefits include:

• Formulated for landing gear systems, providing reliable energy absorption during landings

• Excellent corrosion and rust protection, safeguarding strut components against moisture and contaminants

• Thermal and oxidative stability, resisting sludge, varnish, and oil breakdown under high stress

• Wide temperature operating range, ensuring consistent performance in extreme hot and cold conditions

• Approved for aviation use, meeting OEM and military specifications for strut fluids

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