RoycoŽ 757 hydraulic and preservative fluid is a super-clean, additized, highly refined mineral oil that is intended to be utilized across a wide operating temperature range. RoycoŽ 757 is a low viscosity mineral-based fluid designed specifically for use as an operational fluid for missile systems, aircraft, and Unmanned Aerial Vehicles (UAV) that require consistent fluid performance from -64°C to +135°C. High performance additives that are utilized in RoycoŽ 757 provides low temperature stability and low temperature fluidity, as well as anti-wear protection, resistance to foaming, rust, and oxidation. |
![]() |
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov. |
Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.