Hydraulic fluids

Engineered for today's aviation needs

Our Exxon HyJet™ branded hydraulic fluids are widely acknowledged as offering top performance compared to alternative hydraulic fluids. These fire-resistant phosphate esters are designed for use in commercial aircraft, providing power conveyance, heat transfer protection, and lubrication and protection against wear and corrosion.

Product chart

View our full range of
aviation products.


Where to buy tool

Learn more about where
to buy ExxonMobil
aviation fuels
and lubricants.

Hyjet V

HyJet V hydraulic fluid is superior in thermal and hydrolytic stability to commercially available Type IV hydraulic fluids — which can mean less fluid degradation and longer in-service fluid life.

Hyjet IV-A plus

HyJet IV-Aplus hydraulic fluid provides superior high-temperature stability, rust protection and density compared to all other Type IV hydraulic fluids.

Mobil Aero HF Series

Mobil Aero HFA and HF are hydrocarbon-based hydraulic fluids with excellent low-temperature properties, good anti-wear performance and good chemical stability.