Mobil Aero HFA is a premium quality fluid that meets the quality requirements of the U.S. Military specification MIL-H-5606A (now obsolete). It has a very high VI and is suitable for use at temperatures down to -54 ºC (-65 ºF). While this quality fluid is no longer used by the U.S. Military, it is still used in some older, small private, and commercial aircraft. It is also used in industrial and commercial equipment requiring good fluidity at very low temperatures, where Mobil Aero HFA provides long, trouble-free service over a wide range of operating conditions.
Composed of mineral base oil stock and containing shear-stable VI improvers, Mobil Aero HFA is formulated for aircraft systems requiring use of hydrocarbon-based hydraulic fluids.
Mobil Aero HFA is a low-viscosity, high-viscosity-index (370) fluid with good anti-wear performance and chemical stability, as well as excellent low-temperature properties. This product provides extended, trouble-free service over a broad range of operating conditions.