Mobil Aero™ HFA

Mobil Aero HFA hydraulic oil is formulated for aircraft systems requiring hydrocarbon-based hydraulic fluids. It is composed of mineral base oil stock and contains shear-stable VI improvers. Designed to meet the demanding requirements of commercial and military aircraft applications, it offers excellent low temperature properties, good anti-wear performance, and good chemical stability.

https://www.exxonmobil.com/en/aviation/products-and-services/products/mobil-aero-hf-series