Lubricating hydraulic fluid Mobil™ HyJet™ IV-Aplus
for aircraft

lubricating hydraulic fluid
lubricating hydraulic fluid
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for aircraft

Max.: 128 °C (262 °F)

Min.: -54 °C (-65 °F)


Max.: 0.002 m²/s

Min.: 0.000003 m²/s


Engineered for use in commercial and business aircraft, Mobil HyJet IV-Aplus is the hydraulic fluid of choice for many of today’s mixed-fleet airlines. Mobil HyJet IV-Aplus is a fire-resistant Type IV phosphate ester aviation hydraulic fluid that offers performance capabilities at levels close to those of Type V fluids. Mobil HyJet IV-Aplus hydraulic fluid offers outstanding rust and deposit control. The lowest density Type IV fluid commercially available today, Mobil HyJet IV-Aplus hydraulic fluid can help airlines save money. Reasons to trust in Mobil HyJet IV-Aplus hydraulic fluid Offers potential savings in fuel consumption and costs with its low-density formulation Provides excellent high-temperature stability and low-temperature viscosity for extended fluid and component life Offers superb deposit control and exceptional protection against wear, rust and corrosion, helping airlines reduce repair costs and maximize equipment life Carries wide range of aircraft manufacturer approvals to offer greater flexibility to operators


*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.